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REVIEW 3 major objections 4 minor 78 references

Ferromagnetic Traps for Quasi-Continuous Operation of Optical Nanofiber Interfaces

T0 review · 3 major / 4 minor · reviewed 2026-08-10 · deepseek-v4-flash

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Pith's one-line read By aligning an optical nanofiber with the ultra-straight zero-field line of a ferromagnetic-plate 2D magneto-optical trap, this paper demonstrates quasi-continuous field-free spectroscopy of cold atoms at 250 kHz without switching off the…

desk verdict Solid experimental advance with an honest but unresolved line-broadening issue; the n=4 extrapolation is plausible but not yet demonstrated. read the letter →

arxiv 2412.20734 v5 pith:FIJRRIM4 submitted 2024-12-30 physics.atom-ph

Ruijuan Liu , Jinggu Wu , Yuan Jiang , Yanting Zhao , Saijun Wu This is my paper · ORCID
classification physics.atom-ph PACS 37.10.Gh37.10.De
keywords opticalnanofibercoldatoms2Dmagneto-opticaltrapferromagneticzero-fieldlinetransientspectroscopymu-metalwaveguideQED
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

This paper tries to establish that a soft ferromagnetic plate assembly can create an ultra-straight magnetic zero-field line, and that an optical nanofiber placed along this line can operate as a field-free quantum interface while a magneto-optical trap keeps running. The authors argue this removes the need to switch off trapping fields between measurements, which is normally a slow step that limits the duty cycle of nanofiber-based quantum optics. They demonstrate the idea with a two-plate trap using rubidium-87 atoms, achieving transient absorption spectroscopy at a 250 kHz repetition rate, and they argue that a four-plate version eliminates residual field gradients for interaction lengths up to about 100 mm.

What carries the argument

The central object is the soft-ferromagnetic mu-metal plate, a nickel-iron alloy with high permeability, which uniformizes the Tesla-level field of an attached permanent magnet so that the opposite surface carries a smooth, electronically tunable field. Magnetic charge redistribution inside the plate shields source irregularities, analogous to electrostatic shielding by a grounded conductor, and the resulting surface charge distribution produces a highly uniform field near the plate surface. Arranging n=2 or n=4 such plates symmetrically creates a quadrupole field with an ultra-straight zero-field line; coils wrapped around the plates shift this line electronically, allowing it to be overlapped precisely with the nanofiber.

What would settle it

Replace the nanofiber with a freshly pulled or chemically cleaned one in an otherwise identical two-plate assembly and repeat the transient spectroscopy; if the ~10.5 MHz broadening persists unchanged while surface characterization shows no magnetic particles, the residual-field and surface-magnetic explanations for the broadening would be undermined, whereas a near-natural linewidth would confirm that the broadening is not intrinsic to the ferromagnetic trap.

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Extended reading notes

Core claim

The central claim is that structured soft ferromagnetic plates, magnetized by permanent magnets and tuned by small currents, can serve as practical sources of nearly ideal two-dimensional quadrupole fields whose zero-field line is straight enough to match a stiff optical nanofiber over long distances. In the two-plate experiment, the zero-field line is aligned to the nanofiber with gradients of about 21 G/cm, -24 G/cm, and 3 G/cm along x, y, and z, and the trapped atoms are probed with nanosecond pulses at 250 kHz. The measured absorption line is a Lorentzian broader than the natural line, about 9.5 to 10.5 MHz versus 6.1 MHz, an effect the paper partly attributes to residual magnetic fields in the two-plate geometry and partly to magnetic surface contamination whose origin is not definitively established. The paper further argues that a four-plate assembly cancels the unwanted z-gradient, producing an ultra-straight two-dimensional trap with field-free distances up to l~100 mm and resonant optical depth reaching the ~1000 level.

Load-bearing premise

The central claim depends on the observed 10.5 MHz absorption broadening not coming from an unrecognized magnetic field at the nanofiber surface, a possibility the authors explicitly say they cannot rule out.

Editorial extensions

If this is right

  • Field-free interrogation of nanofiber-coupled atoms becomes possible without switching off the magneto-optical trap, enabling quasi-continuous measurement cycles with only microsecond-scale cooling between probes.
  • The four-plate assembly removes the residual z-gradient, supporting field-free interaction lengths of about 100 mm and resonant optical depths around 1000 for lattice-loaded atoms.
  • Higher-order assemblies with six or eight plates create multiple zero-field lines that can be split or merged, allowing coherent control of several one-dimensional atomic samples around a single nanofiber.
  • Reducing the working distance can raise field gradients to the ~1 kG/cm level, opening a route to combine nanofiber interfaces with magnetically guided atom interferometry.
  • The fast electronic shifting of the zero-field line could be used to move atoms relative to the nanofiber within tens of microseconds, enabling time-sequenced quantum operations.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • If the residual line broadening turns out to be caused by magnetic nanoparticles on the fiber surface, the same transient-spectroscopy setup could serve as a sensitive in-situ monitor of nanofiber surface contamination, and the observed heating-induced linewidth recovery suggests a practical cleaning mechanism worth systematic study.
  • The ultra-straight zero-field line produced by the four-plate assembly may benefit other precision measurements that need a long, well-defined zero-field environment, such as Rydberg atom arrays or compact atomic clocks, not just nanofiber-based quantum optics.
  • A direct quantitative comparison between the ferromagnetic-plate assembly and an equivalent current-wire 2D-MOT, measuring field straightness and gradient uniformity over the interaction length, would test the claimed advantage of the plate approach.
  • The ability to split and merge zero-field lines in hexapole and octupole assemblies could be extended to dynamically reconfigure the number and position of one-dimensional atomic samples, enabling programmable waveguide-QED networks.
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Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, and a circularity audit.

Referee Report

3 major / 4 minor

Summary. The paper proposes and tests a ferromagnetic-plate technique for generating ultra-straight, electronically tunable two-dimensional quadrupole fields for cold-atom trapping, specifically to enable quasi-continuous, field-free operation of an optical-nanofiber interface without switching off the trapping field. A 2-plate assembly is integrated with a planar 2D-MOT and a nanofiber, and the authors demonstrate MOT loading, electronic shifting of the zero-field line, and transient absorption spectroscopy at 250 kHz repetition rate with nanosecond probe pulses. The measured linewidth is 9.5–10.5 MHz versus the 6.1 MHz natural width; the excess broadening is not fully explained but is argued to be non-magnetic in origin with respect to the trap field and partly attributed to surface effects. The paper then uses Radia simulations to argue that an n=4 assembly cancels the residual z-gradient, supporting field-free interaction lengths up to ~100 mm with OD~1000, and discusses n=6 and n=8 extensions.

Significance. If the central claim holds, the work offers a practical route around the long-standing conflict between large magnetic gradients for MOT operation and the need for a field-free environment at nanophotonic interfaces. The experimental highlights—microsecond cooling-probe cycling, 250 kHz spectroscopy, electronic zero-field-line positioning, and high-density 2D-MOT loading near a nanofiber—are credible and useful. The proposed n=4 geometry with a highly uniform zero-field line is an interesting design concept that could enable long-interaction-length waveguide QED platforms. However, the demonstration is incomplete: the field-free claim is inferential rather than directly measured at the nanofiber, and the n=4 verification relies on a simulation whose parameters were calibrated on the n=2 system. These points limit the strength of the central conclusions.

major comments (3)
  1. [Sec. III E and Appendix C.9] The central claim of 'field-free operation' is load-bearing but rests on an inferred rather than measured zero field at the ONF location. The trap-field estimate Bz1≈3 G/cm gives δB≈0.6 G across the 4 mm interaction length, which is too small to explain the observed 10.5 MHz linewidth, and Appendix C.9 explicitly states 'we do not have a definite conclusion on the origin of the line broadening.' Since Appendix C.6 shows a clear magnetic signature for the excess broadening, the possibility remains that an unrecognized stray field at the nanofiber surface contributes. Please provide a direct in situ measurement or a quantitative upper bound on B at the ONF location—for example, via a field-sensitive atomic resonance or polarization spectroscopy—before the central field-free claim can be accepted.
  2. [Appendix A and Sec. IV C] The assertion that residual fields 'can be fully eliminated' in the n=4 assembly is based on Radia simulations in which the NdFeB surface field B0=0.9 T and the near-surface scaling factor 0.8 are fixed by matching the 2-plate/S2 measurements. The n=4 prediction therefore partly reuses the calibration data and does not constitute an independent verification. Please validate the n=4 field profile against direct field mapping of the central zero-field line or against a spectroscopic null test in a prototype n=4 interface.
  3. [Appendix C.5 and C.6] The linewidth history (growth from 9.2 to 10.5 MHz over six months, partial recovery after increased heating) and the observed ratio of broadening for F=2–F'=2 versus F=2–F'=3 are interpreted as evidence for magnetic nanoparticles. This is a plausible hypothesis, but it also opens the possibility that the ONF environment is not actually field-free. Please report a quantitative decomposition of the 10.5 MHz width into identifiable sources—trap field, Zeeman distribution, probe-intensity effects, and surface-induced shifts—so that the field-free claim and the spectroscopic interpretation do not remain contingent on an unresolved origin.
minor comments (4)
  1. [Sec. III A 1] The sentence 'By adjusting in the simulation the the NdFeB strength' contains a duplicated article and should be revised.
  2. [Fig. 5b caption] The caption does not fully specify which symbol type corresponds to which plate or assembly; the marker-size encoding is not self-explanatory and should be clarified, ideally with error bars for the repeated measurements.
  3. [Appendix C.1] The single-shot retrieval method is described as detailed in ref. [63], which is cited as 'to be published.' Since this method provides some of the linewidth data, please summarize the Fourier-fit procedure in the appendix or replace the unpublished citation with a published account.
  4. [Sec. IV B] The alignment-error estimates (10-micro-radian angular precision, 10^-4 positional precision) are stated without a derivation; a short calculation or reference would strengthen the plausibility of the l≈100 mm field-free claim.

Circularity Check

0 steps flagged · score 0.0 of 10

No significant circularity: the n=4 field-cancellation claim rests on symmetry and independent surface-field measurements, and the unresolved line broadening is a stated limitation rather than a circular step.

full rationale

The paper's central experimental demonstration—quasi-continuous field-free ONF spectroscopy at 250 kHz repetition in a 2-plate ferromagnetic 2D-MOT—is self-contained and does not reduce to its inputs. The n=4 residual-field-elimination claim is supported by the symmetry of the four-plate configuration plus direct Gauss-probe measurements of the prototype 4-plate assembly; the empirically adjusted NdFeB strength B0 = 0.9 T in Appendix A calibrates the absolute gradient but does not determine the zero-field-line cancellation, which follows from geometry. The linewidth analysis in Appendix C uses measured spectra, standard Rb D2 Zeeman data, and independent numerical simulations; the F=2-F'=2 versus F=2-F'=3 broadening ratio is a genuine cross-check. The paper explicitly states in Appendix C.9 that the origin of the 10.5 MHz broadening is not definitively concluded and speculates about magnetic nanoparticles; this is an unresolved experimental ambiguity and potential correctness risk, not a circular derivation. Self-citations to prior work by author S. Wu (e.g., Ref. [19]) supply context and external experimental support, but the present claims are not forced by those citations alone. No fitted parameter is renamed as a prediction, and no central claim is equivalent to its own definition.

Assumptions & free parameters 3 free parameters · 5 assumptions · 0 invented entities

The central demonstration is experimental, but the extrapolation to the n=4 and 100 mm field-free operation rests on simulation parameters fitted to the 2-plate measurements (B0, scaling factor) and on unverified assumptions about alignment and the origin of the anomalous line broadening.

free parameters (3)
  • NdFeB block surface field B0 = 0.9 T
    Empirical value selected to align simulated central field gradient with measurements (Appendix A).
  • Simulation scaling factor for S2 near-surface field = 0.8
    Applied to Radia simulation in Fig. 5c to match Gauss-probe measurements at h=0.5 mm; not needed for h >> d (Appendix A).
  • MOT loading model parameters b and sigma0 = b = 100 um, sigma0 ~ 0.6b
    Auxiliary parameters in the phenomenological multi-scattering loading model used to fit Fig. 3e and retrieve kappa (Appendix B).
assumptions (5)
  • domain assumption A high-permeability mu-metal plate with mu_r >> 1 and linear response at B << B_sat uniformizes the source field near the opposite surface via surface magnetic charge redistribution, making the field insensitive to source details.
    Invoked in Sec. II A to justify replicating plates for n=2, 4, 6, 8 assemblies; not formally proven for all geometries.
  • standard math The surface charge picture applies and B in air is perpendicular to the surface, so a uniform surface charge gives highly uniform B near S2.
    From Jackson [25]; used to explain robustness in Sec II A.
  • domain assumption Precisely machined and aligned mu-metal plates (10 um machining, 0.1 mm positioning) can achieve 10 micro-radian angular alignment, limiting residual fields to milli-Gauss over 100 mm.
    Estimate in Sec IV B; not experimentally verified for the 100 mm scale.
  • domain assumption The atomic density in the ONF near field is preserved during the nanosecond probe and is largely uniform, so Beer-Lambert and lineshape analysis are straightforward.
    Assumed in Sec III E and Appendix C; supported by frozen atomic motion during the probe.
  • ad hoc to paper Observed anomalous line broadening is of magnetic origin due to surface nanoparticles, not an unrecognized bulk magnetic field.
    Speculative conclusion in Appendix C9; the paper admits no definite conclusion. This assumption is load-bearing for the 'field-free' characterization of the interface.

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Pith. "Pith review of Ferromagnetic Traps for Quasi-Continuous Operation of Optical Nanofiber Interfaces." pith.science (2026). https://pith.science/paper/FIJRRIM4

@misc{pith2026241220734,
  author       = {Pith},
  title        = {Pith review of: Ferromagnetic Traps for Quasi-Continuous Operation of Optical Nanofiber Interfaces},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/FIJRRIM4}},
  note         = {Machine review of arXiv:2412.20734}
}
abstract

A soft ferromagnetic plate uniformizes Tesla-level fields generated by attached permanent magnets, producing a smooth and electronically tunable surface field on the opposite side. By arranging $n$ precisely fabricated rectangular plates, a nearly ideal magnetic quadrupole field with a substantial gradient can be created at center. This robust and rapidly tunable field configuration is well suited for two-dimensional magneto-optical trapping (2D-MOT) and magnetic guiding of cold atoms. By aligning an optical nanofiber (ONF) along the zero-field line of a planar 2D-MOT in a 2-plate assembly, we demonstrate quasi-continuous, field-free operation of the quantum optical interface without switching off the magnetic field. Transient transmission spectroscopy with nanosecond laser pulses is performed on the $^{87}$Rb D2 line at a measurement repetition rate as high as 250 kHz. The observed line broadening, while not yet fully understood, is partially attributed to residual magnetic fields in the $n=2$ assembly. Through additional measurements and simulations, we verify that these residual fields can be fully eliminated in an $n=4$ assembly, resulting in an ultra-straight 2D trap that supports uniform light-atom interaction over exceptionally long, field-free distances. We extend our discussion to $n=6$, $n=8$ designs with similar uniformity but multiple zero-field lines. With its strong gradient for magnetic trapping, the ferromagnetic devices also enable new quantum optical scenarios featuring interactions between co-guided atoms and photons at ONF interfaces.

Figures

Figures reproduced from arXiv: 2412.20734 by the authors.

Figure 1
Figure 1. FIG. 1. (a): Schematic of an ONF-2D-MOT interface with interaction length [PITH_FULL_IMAGE:figures/full_fig_p002_1.png] view at source ↗
Figure 2
Figure 2. FIG. 2. Numerical simulation of the 2D-quadruple field [ [PITH_FULL_IMAGE:figures/full_fig_p003_2.png] view at source ↗
Figure 3
Figure 3. FIG. 3. (a): Schematic of the ONF-2D-MOT apparatus in this work. (b): The ONF-2D-MOT interface through the vacuum [PITH_FULL_IMAGE:figures/full_fig_p005_3.png] view at source ↗
Figures from the paper (4 more)
Figure 4
Figure 4. Figure 4: FIG. 4. (a): Absorption spectroscopy setup and timing sequence. SPCM: Single photon counting module. Here [PITH_FULL_IMAGE:figures/full_fig_p007_4.png]
Figure 5
Figure 5. Figure 5: FIG. 5. (a): Field distribution of the NdFeB [PITH_FULL_IMAGE:figures/full_fig_p009_5.png]
Figure 6
Figure 6. Figure 6: FIG. 6. (a) Schematic of an [PITH_FULL_IMAGE:figures/full_fig_p011_6.png]
Figure 7
Figure 7. Figure 7: a. For circularly polarized HE11 probe, we also find shift of line center at MHz per Gauss level, as expected. Near Bz = 0, however, the minimal linewidth Γ˜/2π is as large as 10.5 MHz. This linewidth is the smallest we can get at the time of the measurement (See Appen…

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Reference graph

Works this paper leans on

78 extracted references · 77 canonical work pages

  1. [1]

    plate-coil

    Two-plate vacuum assembly The experimental setup is illustrated with Fig. 3a. A tapered nanofiber is fabricated with standard method [34–37]. The transmission of ONF is quite high, T > 85%. The fiber is epoxied to a titanium mount. The central l0 ≈ 5 mm ONF section is centered to the mount, beneath which two pair of right-angle prisms are epox- ied to the...

    work page

  2. [2]

    density- limited

    Prism MOT As shown in Fig. 3a, a MOT beam of 18 mm diameter is directed through the vacuum viewport toward the cen- tral right-angle prism pair atop the titanium assembly. The laser beam, with power P = 20 mW, is detuned by ∆ = −2Γ ( −12 MHz) from the F = 2 → F ′ = 3 D2 hyperfine transition of 87Rb. It is circularly polarized to align with the quadrupole ...

    work page

  3. [3]

    4a, we design a composite measurement se- quence to probe the atomic gas through the 2D-MOT- ONF interface

    Summary of linewidth measurements As in Fig. 4a, we design a composite measurement se- quence to probe the atomic gas through the 2D-MOT- ONF interface. Each measurement takes less than 600 ns (Fig. 4b), during which the cooling/repumping/heating beams are all shut off. These beams are then switched back on to ensure quasi-continuous operation of the 2D- ...

    work page

  4. [4]

    On magnetic broadening of absorption profile The absorption line of hyperfine transition can be effi- ciently broadened by a magnetic field, if it is perpendic- ular to the quantization axis set by light. For example, for the F = 2 − F ′ = 3 transition of 87Rb probed by an x−polarized light, the transition frequency of the σ± transitions along z is split ...

    work page

  5. [5]

    Here, for the prism-MOT as in Fig

    MOT alignment Optimal operation of the 2D-MOT requires balancing the intensities of counter-propagating MOT beams [20]. Here, for the prism-MOT as in Fig. 1c and Fig. 3d, we achieve the balance by shifting the position of main beam and walk the angles of the small beams. The balance is verified by the insensitivity of the MOT cen- ter, according to the di...

    work page

  6. [6]

    3d to shift the B-field bias in the x − y plane

    Magnetic field scan We use the plate-coil and x−coil as in Fig. 3d to shift the B-field bias in the x − y plane. We scan the field by up to 1 Gauss in each direction, hardly see a change of linewidth, before the observed absorption signal is too small to support reliable readouts. This is expected. As already suggested by the Fig. 3f data, the shift of th...

    work page

  7. [7]

    7a was measured after the single-chamber ONF-2D-MOT system (Fig

    Drift of linewidth and heating-induced recovery The linewidth shown in Fig. 7a was measured after the single-chamber ONF-2D-MOT system (Fig. 3a) had been in continuous operation for over a year. During the initial six months, we observed a gradual increase in the linewidth, rising from an initial value of ˜Γ/2π ≈ 9.2 MHz to a stabilized minimum of 10.5 MH...

    work page

  8. [8]

    7b, we also perform the F = 2 − F ′ = 2 linewidth measurements during the Bz scan

    F = 2 − F ′ = 2 transition As in Fig. 7b, we also perform the F = 2 − F ′ = 2 linewidth measurements during the Bz scan. Compar- ing to the Γ = 2 π × 6.1 MHz linewidth, the amount of broadening for the F = 2 − F ′ = 2 line is roughly half of that for the F = 2 − F ′ = 3 line in Fig. 7a. This agrees with the Appendix C 2 analysis, suggesting that the line ...

    work page

Show all 78 references
  1. [9]

    By doubling the probe power and repeating the measurements for consistency, we verified that the probe is well below saturation in the near field

    Probe intensity and polarization The optical power of the probe pulse is calibrated by a single-photon detector (Excelitas SPCM-AQRH-16) to be Pprobe = 5 pW [44]. By doubling the probe power and repeating the measurements for consistency, we verified that the probe is well bel...

  2. [10]

    The reliable operation of the OA WG laser probe [67] is verified with independent measure- ments [64]

    Other factors Our probe laser (Moglabs CEL) has a linewidth be- low 1 MHz. The reliable operation of the OA WG laser probe [67] is verified with independent measure- ments [64]. The atomic density in the ONF near field is expected to be moderate. By varying the MOT cool- ing p...

  3. [11]

    Exploiting the field-free interface, the measurement at frep = 250 kHz repetition rate helps us to obtain good signal statistics within minutes

    Discussions In this Appendix, we have detailed linewidth mea- surement in our ferromagnetic 2D-MOT-ONF system. Exploiting the field-free interface, the measurement at frep = 250 kHz repetition rate helps us to obtain good signal statistics within minutes. By the fast probe cal...

  4. [12]

    Hakuta and K

    K. Hakuta and K. P. Nayak, Manipulating single atoms and photons using optical nanofibers , Adv. Nat. Sci: Nanosci. Nanotechnol. 3, 015005 (2012)

    2012

  5. [13]

    Solano, J

    P. Solano, J. A. Grover, J. E. Hoffman, S. Ravets, F. K. Fatemi, L. A. Orozco, and S. L. Rolston, Optical Nanofibers: A New Platform for Quantum Optics , Adv. At. Mol. Opt. Phys. 66, 439 (2017)

    2017

  6. [14]

    Solano, F

    P. Solano, F. K. Fatemi, L. A. Orozco, and S. L. Rolston, Super-radiance reveals infinite-range dipole interactions through a nano fiber , Nat. Commun. 8, 1857 (2017)

    2017

  7. [15]

    A. S. Sheremet, M. I. Petrov, I. V. Iorsh, A. V. Poshakin- skiy, and A. N. Poddubny, Waveguide quantum electro- dynamics: Collective radiance and photon-photon corre- lations, Rev. Mod. Phys. 95, 015002 (2023)

    2023

  8. [16]

    Zhang, H

    J. Zhang, H. Fang, P. Wang, W. Fang, L. Zhang, X. Guo, and L. Tong, Optical microfiber or nanofiber: a miniature fiber-optic platform for nanophotonics , Photon. Insights 3, R02 (2024)

    2024

  9. [17]

    K. Jain, L. Ruks, F. le Kien, and T. Busch, Strong dipole-dipole interactions via enhanced light-matter cou- pling in composite nanofiber waveguides, Phys. Rev. Res. 6, 033311 (2024)

    2024

  10. [18]

    M. J. Morrissey, K. Deasy, M. Frawley, R. Kumar, E. Prel, L. Russell, V. G. Truong, and S. Nic Chor- maic, Spectroscopy, manipulation and trapping of neu- tral atoms, molecules, and other particles using opti- cal nanofibers: A review , Sensors 13, 10449 (2013), 1306.5821

    2013 arXiv

  11. [19]

    Solano, J

    P. Solano, J. A. Grover, Y. Xu, P. Barberis-Blostein, J. N. Munday, L. A. Orozco, W. D. Phillips, and S. L. Rolston, Alignment-dependent decay rate of an atomic dipole near an optical nanofiber , Phys. Rev. A 99, 013822 (2019). 16

    2019

  12. [20]

    H. J. Metcalf and P. van der Straten, Laser Cooling and Trapping (Springer-Verlag) (1999)

    1999

  13. [21]

    Vetsch, D

    E. Vetsch, D. Reitz, G. Sagu´ e, R. Schmidt, S. T. Dawkins, and A. Rauschenbeutel, Optical interface cre- ated by laser-cooled atoms trapped in the evanescent field surrounding an optical nanofiber , Phys. Rev. Lett. 104, 203603 (2010)

    2010

  14. [22]

    Goban, K

    A. Goban, K. S. Choi, D. J. Alton, D. Ding, C. Lacroˆ ute, M. Pototschnig, T. Thiele, N. P. Stern, and H. J. Kim- ble, Demonstration of a state-insensitive, compensated nanofiber trap, Phys. Rev. Lett. 109, 033603 (2012)

    2012

  15. [23]

    Y. Meng, A. Dareau, P. Schneeweiss, and A. Rauschen- beutel, Near-Ground-State Cooling of Atoms Optically Trapped 300 nm Away from a Hot Surface , Phys. Rev. X 8, 31054 (2018)

    2018

  16. [24]

    D. Su, R. Liu, Z. Ji, X. Qi, Z. Song, Y. Zhao, L. Xiao, and S. Jia, Observation of ladder-type electromagnetically induced transparency with atomic optical lattices near a nanofiber, New J. Phys. 21, 043053 (2019)

    2019

  17. [25]

    Kestler, K

    G. Kestler, K. Ton, D. Filin, C. Cheung, P. Schneeweiss, T. Hoinkes, J. Volz, M. Safronova, A. Rauschenbeutel, and J. Barreiro, State-insensitive trapping of alkaline- earth atoms in a nanofiber-based optical dipole trap, PRX Quantum 4, 040308 (2023)

    2023

  18. [26]

    Sagu´ e, E

    G. Sagu´ e, E. Vetsch, W. Alt, D. Meschede, and A. Rauschenbeutel, Cold-atom physics using ultrathin op- tical fibers: Light-induced dipole forces and surface inter- actions, Phys. Rev. Lett. 99, 163602 (2007)

    2007

  19. [27]

    N. V. Corzo, J. Raskop, A. Chandra, A. S. Sheremet, B. Gouraud, and J. Laurat, Waveguide-coupled single collective excitation of atomic arrays , Nature 566, 359 (2019)

    2019

  20. [28]

    B. D. Patterson, P. Solano, P. S. Julienne, L. A. Orozco, and S. L. Rolston, Spectral asymmetry of atoms in the van der Waals potential of an optical nanofiber , Phys. Rev. A 97, 032509 (2018)

    2018

  21. [29]

    Vengalattore, R

    M. Vengalattore, R. S. Conroy, and M. G. Prentiss, En- hancement of Phase Space Density by Increasing Trap Anisotropy in a Magneto-Optical Trap with a Large Num- ber of Atoms , Phys. Rev. Lett. 92, 183001 (2004)

    2004

  22. [30]

    S. Wu, E. Su, and M. Prentiss, Demonstration of an Area-Enclosing Guided-Atom Interferometer for Rota- tion Sensing , Phys. Rev. Lett. 99, 173201 (2007)

    2007

  23. [31]

    C. G. Townsend, N. H. Edwards, C. J. Cooper, K. P. Zetie, C. J. Foot, A. M. Steane, P. Szriftgiser, H. Per- rin, and J. Dalibard, Phase-space density in the magneto- optical trap, Phys. Rev. A 52, 1423 (1995)

    1995

  24. [32]

    Zhang, J

    S. Zhang, J. F. Chen, C. Liu, S. Zhou, M. M. Loy, G. K. Wong, and S. Du, A dark-line two-dimensional magneto- optical trap of 85Rb atoms with high optical depth , Rev. Sci. Instrum. 83, 073102 (2012)

    2012

  25. [33]

    Russell, R

    L. Russell, R. Kumar, V. Tiwari, and S. Nic Chormaic, Measurements on release–recapture of cold 85rb atoms us- ing an optical nanofibre in a magneto-optical trap , Opt. Commun. 309, 313 (2013)

    2013

  26. [34]

    Russell, K

    L. Russell, K. Deasy, M. J. Daly, M. J. Morrissey, and S. Nic Chormaic, Sub-Doppler temperature measurements of laser-cooled atoms using optical nanofibres , Meas. Sci. Technol. 23, 015201 (2012)

    2012

  27. [35]

    Kumar, V

    R. Kumar, V. Gokhroo, K. Deasy, and S. N. Chor- maic, Autler-townes splitting via frequency up-conversion at ultralow-power levels in cold 87Rb atoms using an op- tical nanofiber, Phys. Rev. A 91, 053842 (2015)

    2015

  28. [36]

    J. D. Jackson, Classical Electrodynamics (Wiley; 3rd edi- tion) (1998)

    1998

  29. [37]

    J. M. D. COEY, Magnetism and Magnetic Materials (Cambridge University Press) (2009)

    2009

  30. [38]

    D.-W. Wang, M. D. Lukin, and E. Demler, Disordered bose-einstein condensates in quasi-one-dimensional mag- netic microtraps, Phys. Rev. Lett. 92, 076802 (2004)

    2004

  31. [39]

    Wu, Light pulse Talbot-Lau type interferometry with magnetically guided atoms (Ph

    S. Wu, Light pulse Talbot-Lau type interferometry with magnetically guided atoms (Ph. D thesis, Harvard Uni- versity) (2007)

    2007

  32. [40]

    Elleaume, O

    P. Elleaume, O. Chubar, and J. Chavanne, in Proceed- ings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167), Vol. 3 (1997) p. 3509

    1997

  33. [41]

    Chubar, P

    O. Chubar, P. Elleaume, and J. Chavanne, A three- dimensional magnetostatics computer code for insertion devices, J. Synchrotron Radiat. 5, 481 (1998)

    1998

  34. [42]

    While a nearly ideal 2D qudropole field can stil be formed near the 2D symmetry center, the con- figuration becomes less robust to source field variations

    In the 4-foil assembly, the µ−metal shielding of source magnetic irregularities is compromised at large working distance h, h′. While a nearly ideal 2D qudropole field can stil be formed near the 2D symmetry center, the con- figuration becomes less robust to source field varia...

  35. [43]

    X. Zhou, H. Tamura, T.-h. Chang, and C.-l. Hung, Trapped Atoms and Superradiance on an Integrated Nanophotonic Microring Circuit , Physical Review X 14, 31004 (2024)

    2024

  36. [44]

    Pache, M

    L. Pache, M. Cordier, H. Letellier, M. Schemmer, P. Schneeweiss, J. Volz, and A. Rauschenbeutel, Magic- wavelength nanofiber-based two-color dipole trap with sub- λ/2 spacing, Phys. Rev. A 112, L011701 (2025)

    2025

  37. [45]

    J. M. Ward, A. Maimaiti, V. H. Le, and S. N. Chormaic, Contributed Review: Optical micro- and nanofiber pulling rig, Rev. Sci. Instrum. 85, 111501 (2014)

    2014

  38. [46]

    J. E. Hoffman, S. Ravets, J. A. Grover, P. Solano, P. R. Kordell, J. D. Wong-Campos, L. A. Orozco, and S. L. Rolston, Ultrahigh transmission optical nanofibers , AIP Advances 4, 067124 (2014)

    2014

  39. [47]

    Brambilla, V

    G. Brambilla, V. Finazzi, and D. J. Richardson, Ultra- low-loss optical fiber nanotapers , Opt. Express 12, 2258 (2004)

    2004

  40. [48]

    Bashaiah, S

    E. Bashaiah, S. Suman, R. M., B. Das, and R. Yalla, Fab- rication and characterization of optical micro/nanofibers, J. Nanophotonics 18, 036007 (2024)

    2024

  41. [49]

    E. R. Abraham and E. A. Cornell, Teflon feedthrough for coupling optical fibers into ultrahigh vacuum systems , Appl. Opt. 37, 1762 (1998)

    1998

  42. [50]

    Y. Ma, R. Liu, L. Ji, L. Qiu, D. Su, Y. Zhao, N. Yao, W. Fang, and S. Wu, Composite picosecond control of atomic states through a nanofiber interface , Phys. Rev. Appl. 20, 024041 (2023)

    2023

  43. [51]

    Chalony, R

    M. Chalony, R. Pierrat, D. Delande, and D. Wilkowski, Coherent flash of light emitted by a cold atomic cloud , Phys. Rev. A 84, 011401 (2011)

    2011

  44. [52]

    C. C. Kwong, T. Yang, M. S. Pramod, K. Pandey, D. De- lande, R. Pierrat, and D. Wilkowski, Cooperative emis- sion of a coherent superflash of light , Phys. Rev. Lett. 113, 223601 (2014)

    2014

  45. [53]

    D. Su, Y. Jiang, S. Cardenas-Lopez, A. Asenjo-Garcia, P. Solano, L. A. Orozco, and Y. Zhao, Dynamical beats of short pulses in waveguide qed, Phys. Rev. Res. 5, L042041 (2023)

    2023

  46. [54]

    Y. He, L. Ji, Y. Wang, L. Qiu, J. Zhao, Y. Ma, X. Huang, S. Wu, and D. E. Chang, Geometric control of collec- tive spontaneous emission, Phys. Rev. Lett. 125, 213602 17 (2020)

    2020

  47. [55]

    The saturation averaged over the evanescent field is at ¯s = 0.1 level

    According to numerical simulation [39, 50], theP = 5 pW ONF probe power has a saturation parameter of s ≈ .3 at the ONF surface for linearly polarized light. The saturation averaged over the evanescent field is at ¯s = 0.1 level

  48. [56]

    Asenjo-Garcia, J

    A. Asenjo-Garcia, J. D. Hood, D. E. Chang, and H. J. Kimble, Atom-light interactions in quasi-one- dimensional nanostructures : A Green ’ s-function per- spective, Phys. Rev. A 95, 033818 (2017)

    2017

  49. [57]

    Cardenas-Lopez, P

    S. Cardenas-Lopez, P. Solano, L. A. Orozco, and A. Asenjo-Garcia, Optical precursors in waveguide quan- tum electrodynamics, Phys. Rev. Res. 5, 013133 (2023)

    2023

  50. [58]

    D. A. Steck, Rubidium 87 D Line Data (2003)

    2003

  51. [59]

    Peyrot, N

    T. Peyrot, N. ˇSibali´ c, Y. R. P. Sortais, A. Browaeys, A. Sargsyan, D. Sarkisyan, I. G. Hughes, and C. S. Adams, Measurement of the atom-surface van der waals interaction by transmission spectroscopy in a wedged nanocell, Phys. Rev. A 100, 022503 (2019)

    2019

  52. [60]

    K. P. Nayak, M. Das, F. Le Kien, and K. Hakuta, Spec- troscopy of near-surface atoms using an optical nanofiber, Opt. Commun. 285, 4698 (2012)

    2012

  53. [61]

    L. Qiu, L. Ji, J. Hu, Y. He, Y. Wang, and S. Wu, Pre- cise spinor matterwave control with nanosecond adiabatic spin-dependent kicks, PRX Quantum 3, 040301 (2022)

    2022

  54. [62]

    However, the simulated Bx,y 1 gradients decay more rapidly along the z-axis—by about 50% compared to the µ-metal case

    Rectangular 2D-MOT coils, if perfectly wound and with ideal current flow, should in principle produce a magnetic field of comparable uniformity. However, the simulated Bx,y 1 gradients decay more rapidly along the z-axis—by about 50% compared to the µ-metal case. This is becau...

  55. [63]

    Aigner, L

    S. Aigner, L. D. Pietra, Y. Japha, O. Entin-Wohlman, T. David, R. Salem, R. Folman, and J. Schmiedmayer, Long-range order in electronic transport through disor- dered metal films , Science 319, 1226 (2008)

    2008

  56. [64]

    H¨ ummer, P

    D. H¨ ummer, P. Schneeweiss, A. Rauschenbeutel, and O. Romero-isart, Heating in Nanophotonic Traps for Cold Atoms, Phys. Rev. X 9, 41034 (2019)

    2019

  57. [65]

    Petrich, M

    W. Petrich, M. H. Anderson, J. R. Ensher, and E. A. Cornell, Stable, tightly confining magnetic trap for evapo- rative cooling of neutral atoms, Phys. Rev. Lett. 74, 3352 (1995)

    1995

  58. [66]

    M. Xin, W. S. Leong, Z. Chen, and S.-Y. Lan, An atom interferometer inside a hollow-core photonic crystal fiber , Sci. Adv. 4, e1701723 (2018)

    2018

  59. [67]

    Y. Song, W. Li, X. Xu, R. Han, C. Gao, C. Dai, and N. Song, Tightly Trapped Atom Interferometer inside a Hollow-Core Fiber, Photonics 11, 428 (2024)

    2024

  60. [68]

    S. Wu, W. Rooijakkers, P. Striehl, and M. Prentiss, Bidirectional propagation of cold atoms in a “stadium”- shaped magnetic guide , Phys. Rev. A 70, 013409 (2004)

    2004

  61. [69]

    G. B. Andresen, M. D. Ashkezari, M. Baquero-Ruiz, W. Bertsche, P. D. Bowe, E. Butler, C. L. Cesar, S. Chap- man, M. Charlton, A. Deller, S. Eriksson, J. Fajans, T. Friesen, M. C. Fujiwara, D. R. Gill, A. Gutier- rez, J. S. Hangst, W. N. Hardy, M. E. Hayden, A. J. Humphries, R....

    2010

  62. [70]

    D. E. Chang, V. Vuleti´ c, and M. D. Lukin, Quantum nonlinear optics — photon by photon , Nat. Photonics 8, 685 (2014)

    2014

  63. [71]

    Liedl, F

    C. Liedl, F. Tebbenjohanns, C. Bach, and S. Pucher, Ob- servation of Superradiant Bursts in a Cascaded Quantum System, Phys. Rev. X 14, 11020 (2024)

    2024

  64. [72]

    Haubrich, H

    D. Haubrich, H. Schadwinkel, F. Strauch, B. Ueberholz, R. Wynands, and D. Meschede, Observation of individ- ual neutral atoms in magnetic and magneto-optical traps , EPL 34, 663 (1996)

    1996

  65. [73]

    Prentiss, A

    M. Prentiss, A. Cable, J. E. Bjorkholm, S. Chu, E. L. Raab, and D. E. Pritchard, Atomic-density-dependent losses in an optical trap , Opt. Lett. 13, 452 (1988)

    1988

  66. [74]

    Jinggu Wu, Ruijuan Liu et al, to be published

  67. [75]

    Huang, Y

    X. Huang, Y. Wang, J. Zhao, and S. Wu, Complex-valued three-dimensional atomic spectroscopy with Gaussian- assisted inline holography , Phys. Rev. Res. 7, 013054 (2025)

    2025

  68. [76]

    Y. Ma, X. Huang, X. Wang, L. Ji, Y. He, L. Qiu, J. Zhao, Y. Wang, and S. Wu, Precise pulse shaping for quan- tum control of strong optical transitions , Opt. Express 28, 17171 (2020)

    2020

  69. [77]

    Vetsch, S

    E. Vetsch, S. T. Dawkins, R. Mitsch, D. Reitz, P. Schneeweiss, and A. Rauschenbeutel, Nanofiber-based optical trapping of cold neutral atoms , IEEE J. Sel. Top. Quantum Electron. 18, 1763 (2012)

    2012

  70. [78]

    Y. Wang, Y. He, L. Ji, J. Hu, X. Huang, Y. Ma, L. Qiu, K. Zhao, and S. Wu, Intense, wideband optical waveform generation by self-balanced amplification of fiber electro- optical sideband modulation, Chin. Opt. Lett. 20, 111401 (2022)

    2022

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