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REVIEW 5 major objections 5 minor 1 cited by

Multimode and Random-Access Optical Quantum Memory via Adiabatic Phase Imprinting

T0 review · 5 major / 5 minor · reviewed 2026-08-07 · deepseek-v4-flash

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Pith's one-line read Chirped pulses give optical quantum memory eight-mode random access

desk verdict A genuinely new RAP-based optical echo memory with real multimode and random-access capability, but the 'single-photon level' claim actually uses ~2500-photon coherent pulses, so the quantum-memory claim is not yet supported by the data. read the letter →

arxiv 2506.12223 v1 pith:BILVHU2X submitted 2025-06-13 quant-ph

Nasser Gohari Kamel , Sourabh Kumar , Ujjwal Gautam , Erhan Saglamyurek , Vahid Salari , Daniel Oblak This is my paper
classification quant-ph PACS 03.67.-a42.50.Md
keywords quantummemoryrandom-accessrapidadiabaticpassagephotonechorare-earthdopedcrystalmultimodestorageYb:YSOphaseimprinting
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

The paper introduces a photon-echo quantum memory protocol, RAPPI, that replaces the usual intense short $\pi$-pulses with two identical rapid adiabatic passage (RAP) pulses to rephase stored optical excitations in a rare-earth-doped crystal. The first RAP pulse imprints a frequency-dependent phase that suppresses the unwanted primary echo, and the second identical pulse cancels that phase imprint so that only the desired secondary echo is re-emitted. Using the $^{171}\mathrm{Yb}^{3+}:\mathrm{Y}_2\mathrm{SiO}_5$ transition, the authors demonstrate storage and retrieval of 26 temporal modes, spectro-temporal modes across three spectral cells, and random-access recall of any of eight distinct spectral modes, with no discernible cross-talk between spectral cells. They measure a classical-pulse efficiency of about 28% at 140 $\mu$s storage, against a model estimate of 29.7% including the 586 $\mu$s optical coherence time, and a single-photon-level recall efficiency up to 13%. If it holds, the protocol offers quantum networks a random-access optical memory whose control pulses require far less power and tolerate more frequency and amplitude fluctuation than conventional echoes.

What carries the argument

The load-bearing element is the pair of identical rapid adiabatic passage pulses, each shaped as $P(t)=A(t)\sin(\omega_0 t + \phi(t))$ with $A(t)=A_0\,\mathrm{sinc}(2(t-t_0)/\tau_R)$ and quadratic phase $\phi(t)=\frac{\Delta_R}{\tau_R}(t-t_0)^2$, giving a linear frequency sweep at rate $R=\Delta_R/\tau_R$. Each pulse rotates Bloch vectors around the X-axis and imprints a frequency-dependent phase; two identical pulses imprint cancelling phases, so the pair acts as a $2\pi$ rotation that silences the primary echo and revives the secondary one on demand when $\Omega_R^2 \gg R$ is satisfied. The multitone generalization sums shifted single-tone RAP pulses so that distinct spectral regions act as independently addressable memory cells, and the Maxwell-Bloch equations for the probe field connect the coherence evolution to the measured retrieval efficiency.

What would settle it

Store a weak probe in one spectral cell, then apply multitone RAP pulses addressing only the other cells and retrieve; if the echo amplitude or phase changes as the number of off-resonant tones increases, or if a cell emits an echo when no probe was stored there, spectator-atom effects are breaking the memory's assumptions.

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Extended reading notes

Core claim

The central claim is that two identical RAP pulses, frequency-swept pulses with modified sinc amplitude and quadratic phase chirp, can satisfy the adiabaticity condition $\Omega_R^2 \gg R$ and serve as rephasing pulses for the silenced-echo scheme in the optical domain, yielding a multimode, random-access optical quantum memory. RAP1 adiabatically inverts the atomic population and imprints a detuning-dependent phase on each Bloch vector, preventing the rephasing that would otherwise produce a primary echo; the co-propagating RAP2 transfers the atoms back toward the ground state and imprints the opposite phase, cancelling RAP1's imprint so that all vectors rephase at time $t_E = 2(\tau_2 + \tau_R)$ and emit the secondary echo. The authors verify this in a $^{171}\mathrm{Yb}^{3+}:\mathrm{Y}_2\mathrm{SiO}_5$ crystal by storing and recalling classical and few-thousand-photon probe pulses, by selectively retrieving individual spectral cells with single-tone and multitone RAP pulses, and by implementing optical RAM across eight 3.5 MHz-spaced spectral modes. They further show that RAPPI approaches the ~54% efficiency ceiling for a two-level absorptive memory, whereas two-pulse photon echo exhibits signal amplification, and that the protocol survives the presence of 'spectator' atoms if ion-ion interactions are negligible.

Load-bearing premise

The protocol assumes that the many 'spectator' ions addressed by the chirped RAP pulses, ions that did not absorb the probe, do not disturb the stored coherence, which requires ion-ion interactions to be negligible; otherwise the stored modes would pick up extra decoherence and cross-talk.

Editorial extensions

If this is right

  • A single inhomogeneously broadened crystal can act as a random-access optical memory: any stored spectral mode can be recalled on demand, in any order, without recalling the others.
  • Multitone RAP pulses reduce the control overhead for an eight-mode optical RAM to six RAP-pulse sets, versus roughly sixteen control pulses for EIT or on-demand AFC storage of the same number of modes.
  • RAP-based rephasing reaches the intrinsic efficiency ceiling for two-level absorptive optical memories and avoids the amplification that disqualifies two-pulse photon echoes.
  • In the current two-level implementation the memory lifetime is set by the optical coherence time (~586 $\mu$s), with a fitted memory decay time of 365 $\mu$s; extending storage would require spin-wave storage or dynamical decoupling.
  • Storage and retrieval operate for weak coherent inputs of about 2500 photons per pulse with recall out to 480 $\mu$s, establishing a low-photon-number operating regime for the protocol.

Reading between the lines

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

  • If spectator-atom coupling is truly negligible, scaling the same RAP sweep over the full ~550 MHz inhomogeneous linewidth of Yb:YSO should enable nanosecond-duration temporal modes and many more addressable spectral cells than eight, limited mainly by available RAP power and heating.
  • A slight spatial offset between probe and RAP modes, proposed in the paper to suppress free-induction-decay noise, could push operation to genuine single-photon inputs and is directly testable with the present setup.
  • Automating the manual RAP timing schedule should turn the eight-mode demonstration into a scalable optical RAM controller, and the phase-imprint mechanism may transfer to telecom-wavelength rare-earth transitions for network integration.
  • Combining RAPPI with impedance-matched cavities or waveguides could plausibly raise efficiency beyond the single-pass 54% ceiling while keeping random access, though the paper does not demonstrate this.
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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

5 major / 5 minor

Summary. The manuscript introduces the RAPPI (Rapid Adiabatic Passage Phase Imprint) protocol, a photon-echo-based optical memory that replaces conventional short, intense pi pulses with two identical chirped adiabatic pulses. The first RAP pulse imprints a detuning-dependent phase that silences the primary echo; the second RAP pulse cancels that phase and rephases the stored coherence into a delayed secondary echo. The authors present Maxwell-Bloch theory, Bloch-sphere dynamics, and experiments in a 171Yb:YSO crystal at 10 mK. They demonstrate echo suppression and on-demand retrieval, report storage efficiencies from 28% at 140 us down to 5% at 480 us, and show temporal storage of 26 modes, multitone spectral storage, spectro-temporal multiplexing, and random-access retrieval across eight spectral bins. They also characterize the optical coherence time T2O ~586 us and spin-lattice relaxation over three hours at 10 mK. The paper claims this is the first optical demonstration of RAP pulses meeting adiabaticity conditions that revive silenced echoes, and frames the protocol as a path toward random-access optical quantum memory.

Significance. If the claims were fully supported, this would be a useful advance: RAPPI lowers the required rephasing-pulse intensity relative to pi-pulse ROSE, offers flexible spectral/temporal mode addressing via chirped and multitone pulses, and extends a ROSE-type protocol into a regime with more scalable multimode control. The theoretical framework is clearly presented, the independent T2O measurement is a strength, and the visible primary-echo suppression with secondary-echo retrieval is a clean demonstration of the core mechanism. However, the central quantum-memory claim is not established by the data as presented: the 'single-photon level' experiment uses approximately 2500-photon coherent pulses, no nonclassical or qubit-fidelity test is reported, and the quantitative efficiencies are based on selecting the maximum of twenty trials without error bars. The protocol itself remains plausible and interesting, but the manuscript currently demonstrates a classical multimode optical memory with a plausible path to quantum operation rather than a photonic quantum memory.

major comments (5)
  1. [§IV, Fig. 4, Methods calibration] The section titled 'Single-photon level probe-pulse storage' and the accompanying claims in the abstract about 'photonic quantum memory' and 'high-fidelity qubit storage and retrieval' are not supported by the reported experiment. The Methods state that the weak coherent input pulse contains about 2500 photons per pulse at the memory input, which is far outside the single-photon regime; a coherent state of mean photon number 2500 is classical, and the data cannot establish qubit-level or nonclassical storage. The manuscript should either add a genuine few-photon or nonclassical demonstration with fidelity/entanglement verification, or substantially reframe the claims as a classical weak-coherent-pulse memory demonstration.
  2. [Appendix A and Figs. 3, 5, 6] The efficiency analysis is not statistically grounded. Appendix A states that for the measurements shown in Figs. 3, 5, and 6, the amplitudes of twenty trials are recorded and the trial yielding the maximum echo amplitude is selected for analysis. No error bars or trial-to-trial distributions are given. The reported efficiencies (28%, 13%, 9%, 5%) and the claimed agreement with the theoretical 29.7% therefore reflect a selection bias whose size is unknown. The authors should report the mean and standard error over trials, or provide the full distribution, and discuss the effect of maximum-of-20 selection on the efficiency values.
  3. [§IV, Fig. 3c and theoretical prediction] The 'excellent agreement' between the measured 28% efficiency at 140 us and the predicted 29.7% is sensitive to which coherence time is used. The prediction combines the Maxwell-Bloch efficiency of 48% with the independently measured T2O = 586 us, but the echo-decay fit in Fig. 3c yields T2M = 365 us, which is substantially shorter. If the measured T2M is used in the same formula, the predicted efficiency at 140 us is about 22%, not 28%. The discrepancy between T2M and T2O is not discussed, and the claimed agreement therefore depends on the choice of T2O rather than on the fitted memory decay; this point needs to be clarified and reconciled.
  4. [§III and §IVA, Figs. 5e and 6] The protocol's applicability to the optical domain relies on the assumption that spectator atoms, which interact with the RAP pulses but not with the probe, do not destroy the stored coherence. Section III states that this works 'if ion-ion interactions are negligible,' and Section IVA refers to 'no discernible cross-talk between the spectral memory cells' but only in the Supplemental Material. No quantitative crosstalk measurement or error analysis appears in the main text. Since the random-access and multitone demonstrations depend directly on this assumption, the main text should provide the measured crosstalk level, or at least the key experimental trace and analysis, rather than deferring the only evidence to the supplement.
  5. [Introduction and Abstract] The novelty claim that this is 'the first demonstration of RAP pulses meeting adiabaticity conditions to successfully revive optical silenced echoes' is not adequately supported relative to the cited literature. In particular, Ref. [35] (Pascual-Winter et al., 'Securing coherence rephasing with a pair of adiabatic rapid passages') appears from its title to be directly relevant to adiabatic-passage rephasing in the optical domain. The authors should explicitly state what distinguishes the present demonstration from Ref. [35] and any related prior work, or temper the 'first demonstration' claim accordingly.
minor comments (5)
  1. [§IV and Fig. 2d] The text says T2O = 586 us is 'measured to be 586 us (Fig. 3d)', but the T2O data appear in Fig. 2d, not Fig. 3d; the figure reference should be corrected.
  2. [§IIB and §III] The chirp rate R appears with inconsistent units: in the Hamiltonian it has units of frequency per time (rad/s^2), while the experiment quotes R = 2π×30 MHz/ms. Please define R and Delta_R consistently and state the conversion used in the adiabaticity condition Ω_R^2 >> R.
  3. [§IVA, Fig. 5d] The text states that increasing the number of tones reduces recall efficiency, but no quantitative efficiencies are reported for the five-tone and three-tone FIFO traces in Fig. 5d; adding the values would make the claimed trade-off concrete.
  4. [Abstract and §V] The phrase 'high-fidelity qubit storage and retrieval' appears without any fidelity measurement in the manuscript. Either report a fidelity or remove the phrase, since the experiments use classical coherent pulses and do not characterize qubit states.
  5. [Appendix A] The maximum-of-20-trials selection rule is described only in the Appendix, but it affects all quantitative efficiency claims in the main text; this should be disclosed prominently in the main text or in the Methods of the main text.

Circularity Check

0 steps flagged · score 0.0 of 10

No circularity: the RAPPI efficiency prediction combines an independent Maxwell-Bloch model with a separately measured T2O; no load-bearing self-citation or reduce-by-construction step was found.

full rationale

The paper's central quantitative check is not circular. The predicted efficiency is constructed from the Maxwell-Bloch propagation model (48% for a 1.2 cm medium at the known optical depth) and is then multiplied by exp(-2t_E/T2O) using T2O = 586 microseconds independently measured by 2PPE, yielding 29.7%, which is compared with the 28% experimental value. No parameter of the echo-efficiency decay curve enters that estimate, so the agreement is not forced by construction. The extracted T2M = 365 microseconds is openly presented as a fit to the measured storage-time decay ('The results are fitted to eta = eta_R exp(-2t/T2M)'), i.e., as characterization rather than as a model prediction. The RAP-pulse dynamics and phase-imprint cancellation are modeled with standard adiabatic-passage theory and prior external work [35, 36, 41], not with a self-citation chain that supplies the conclusion. The protocol mechanism (RAP1 phase imprint silencing the primary echo, RAP2 canceling it) is derived from the Hamiltonian and verified experimentally. Concerns about the 'single-photon level' label with a ~2500-photon coherent input and the selection of the maximum of twenty trials for efficiency analysis are statistical and claim-strength issues, not circularity; they do not make the derivation equivalent to its inputs.

Assumptions & free parameters 4 free parameters · 5 assumptions · 0 invented entities

The central claim rests on standard photon-echo theory and on the protocol-specific assumption that two identical RAP pulses exactly cancel their phase imprints. The most fragile premise is the neglect of ion-ion interactions with spectator atoms, which is explicitly flagged by the authors. No new physical entities are introduced; spectral memory cells are frequency bins in the existing inhomogeneously broadened transition.

free parameters (4)
  • RAP chirp rate R = 2π × 30 MHz/ms
    Chosen to cover the probe bandwidth (about 1.5 MHz over 50 us) while satisfying adiabaticity (Ω_R² >> R). Not fitted to the echo output.
  • RAP Rabi frequency Ω_R = 2π × 0.35 MHz
    Set by the laser power to meet adiabaticity. It is a control parameter, not fitted to memory efficiency.
  • RAP pulse duration τ_R = 50 μs
    Chosen to be long enough for adiabatic following and short enough for practical storage times. Affects echo timing.
  • Spectral cell spacing Δ = 3.5 MHz
    Hand-picked separation between memory cells to avoid spectral overlap while allowing multiple channels within the inhomogeneous line.
assumptions (5)
  • standard math Maxwell-Bloch propagation equations with weak-probe linear response
    Eqs. (2)-(3) model probe absorption and echo emission; standard for photon echoes and valid for weak input pulses.
  • domain assumption RAP Hamiltonian with linear chirp and slow amplitude variation (adiabatic following)
    Eq. (1) and the phase in Eq. (6) assume each atom undergoes an adiabatic π rotation with a detuning-dependent phase. Non-adiabatic transitions would add errors.
  • domain assumption Two identical RAP pulses imprint exactly opposite detuning-dependent phases
    The protocol design requires RAP2 to cancel the phase imprint of RAP1 at the echo time. Any mismatch would weaken echo suppression or readout.
  • domain assumption Ion-ion interactions, including with spectator atoms, are negligible
    Explicitly stated in Sec. III: if false, spectator atoms excited by RAP pulses could dephase the stored coherence and reduce efficiency.
  • domain assumption The weak probe is a small perturbation and does not saturate the optical transition
    Probe powers range from 0.35 uW to 1.75 uW or about 2500 photons per pulse, consistent with linear absorption used in the model.

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Cite this review

Pith. "Pith review of Multimode and Random-Access Optical Quantum Memory via Adiabatic Phase Imprinting." pith.science (2026). https://pith.science/paper/BILVHU2X

@misc{pith2026250612223,
  author       = {Pith},
  title        = {Pith review of: Multimode and Random-Access Optical Quantum Memory via Adiabatic Phase Imprinting},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/BILVHU2X}},
  note         = {Machine review of arXiv:2506.12223}
}
abstract

A photonic quantum memory capable of simultaneously storing multiple qubits and subsequently recalling any randomly selected subset of the qubits, is essential for large-scale quantum networking and computing. Such functionality, akin to classical Random-Access Memory (RAM), has proven difficult to implement due to the absence of a versatile random-access mechanism and limited multimode capacity in existing quantum memory protocols. A potential path to developing the quantum analog to RAM is offered by photon-echo protocols in rare-earth ion-doped materials, such as Revival Of Silenced Echo. These can utilize optical rephasing pulses to selectively read-out frequency multiplexed photonic qubits within an inhomogeneously broadened optical transition. However, the conventional non-adiabatic nature of the rephasing pulses requires intense, short-duration pulses, impeding their fidelity and multimode capacity. To address these critical limitations, we introduce an alternate protocol that employs Rapid Adiabatic Passage (RAP) rephasing pulses, to realize quantum memory, which invokes phase-imprints to suppress undesirable echoes. Using the optical transitions of a $^{171}{\rm Yb}^{3+}$:${\rm Y}_2{\rm SiO}_5$ crystal, we demonstrate the storage and retrieval of multiple intricate spectro-temporally photonic modes and achieve optical random access memory across eight distinct spectral modes. This protocol yields greatly enhanced mode-mapping versatility while substantially lowering the required rephasing pulse intensity, providing a more efficient and reliable approach for high-fidelity qubit storage and retrieval.

Figures

Figures reproduced from arXiv: 2506.12223 by the authors.

Figure 1
Figure 1. FIG. 1. Comparison of RAPPI and 2PPE protocols. [PITH_FULL_IMAGE:figures/full_fig_p003_1.png] view at source ↗
Figure 2
Figure 2. FIG. 2. Experimental setup and memory medium characteristics. [PITH_FULL_IMAGE:figures/full_fig_p004_2.png] view at source ↗
Figure 3
Figure 3. FIG. 3. RAPPI protocol and efficiency [PITH_FULL_IMAGE:figures/full_fig_p006_3.png] view at source ↗
Figures from the paper (3 more)
Figure 4
Figure 4. Figure 4: FIG. 4. Single-photon level probe-pulse storage. Average photon count histograms over 50 cycles, comparing storage with [PITH_FULL_IMAGE:figures/full_fig_p006_4.png]
Figure 5
Figure 5. Figure 5: FIG. 5. Multimode capacity of RAPPI protocol. [PITH_FULL_IMAGE:figures/full_fig_p008_5.png]
Figure 6
Figure 6. Figure 6: FIG. 6. Optical random-access storage and retrieval of 8 spectral modes. [PITH_FULL_IMAGE:figures/full_fig_p009_6.png]

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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Reference graph

Works this paper leans on

52 extracted references · 44 canonical work pages · cited by 1 Pith paper

  1. [35]

    M. F. Pascual-Winter, R.-c. Tongning, T. Chaneli` ere, and J.-l. L. Gou¨ et, Securing coherence rephasing with a pair of adiabatic rapid passages, New Journal of Physics 15, 055024 (2013)

    work page 2013

  2. [1]

    Saglamyurek, N

    E. Saglamyurek, N. Sinclair, J. Jin, J. A. Slater, D. Oblak, F. Buss ` ıres, M. George, R. Ricken, W. Sohler, and W. Tittel, Broadband waveguide quantum memory for entangled photons, Nature469, 512 – 515 (2011)

    work page 2011

  3. [2]

    De Riedmatten, M

    H. De Riedmatten, M. Afzelius, M. U. Staudt, C. Simon, and N. Gisin, A solid-state light-matter interface at the single-photon level, Nature456, 773 (2008)

    work page 2008

  4. [3]

    Duranti, S

    S. Duranti, S. Wengerowsky, L. Feldmann, A. Seri, 11 B. Casabone, and H. de Riedmatten, Efficient cavity- assisted storage of photonic qubits in a solid-state quan- tum memory, Optics Express32, 26884 – 26895 (2024)

    work page 2024

  5. [4]

    Kimble, The quantum internet, Nature453, 1023 – 1030 (2008)

    H. Kimble, The quantum internet, Nature453, 1023 – 1030 (2008)

    work page 2008

  6. [5]

    L.-M. Duan, M. Lukin, J. Cirac, and P. Zoller, Long- distance quantum communication with atomic ensembles and linear optics, Nature414, 413 – 418 (2001)

    work page 2001

  7. [6]

    Knaut, A

    C. Knaut, A. Suleymanzade, Y.-C. Wei, D. Assumpcao, P.-J. Stas, Y. Huan, B. Machielse, E. Knall, M. Sutula, G. Baranes, N. Sinclair, C. De-Eknamkul, D. Levonian, M. Bhaskar, H. Park, M. Lonˇ car, and M. Lukin, Entan- glement of nanophotonic quantum memory nodes in a telecom network, Nature629, 573 – 578 (2024)

    work page 2024

  8. [7]

    C. Liu, M. Wang, S. A. Stein, Y. Ding, and A. Li, Quantum memory: A missing piece in quan- tum computing units, arXiv preprint arXiv:2309.14432 10.48550/arXiv.2309.14432 (2023)

    arXiv doi:10.48550/arxiv.2309.14432 2023

Show all 52 references
  1. [8]

    De Raedt, F

    H. De Raedt, F. Jin, D. Willsch, M. Willsch, N. Yoshioka, N. Ito, S. Yuan, and K. Michielsen, Massively parallel quantum computer simulator, eleven years later, Com- puter Physics Communications237, 47 (2019)

    2019

  2. [9]

    T. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Mon- roe, and J. O’Brien, Quantum computers, nature464, 45 (2010)

    2010

  3. [10]

    Zhang, J

    S. Zhang, J. Shi, Z. Cui, Y. Wang, Y. Wu, L. Duan, and Y. Pu, Realization of a programmable multipurpose pho- tonic quantum memory with over-thousand qubit manip- ulations, Physical Review X14, 021018 (2024)

    2024

  4. [11]

    A. K. Ekert, Quantum cryptography based on bell’s the- orem, Physical Review Letters67, 661 – 663 (1991)

    1991

  5. [12]

    Lago-Rivera, J

    D. Lago-Rivera, J. V. Rakonjac, S. Grandi, and H. d. Riedmatten, Long distance multiplexed quantum tele- portation from a telecom photon to a solid-state qubit, Nature Communications14, 10.1038/s41467-023-37518- 5 (2023)

    2023 doi

  6. [13]

    Giovannetti, S

    V. Giovannetti, S. Lloyd, and L. MacCone, Quantum ran- dom access memory, Physical review letters100, 160501 (2008)

    2008

  7. [14]

    D. K. Park, F. Petruccione, and J.-K. K. Rhee, Circuit- based quantum random access memory for classical data, Scientific reports9, 3949 (2019)

    2019

  8. [15]

    Gouzien and N

    E. Gouzien and N. Sangouard, Factoring 2048-bit rsa in- tegers in 177 days with 13,436 qubits and a multimode memory, Physical review letters127, 140503 (2021)

    2021

  9. [16]

    Sangouard, C

    N. Sangouard, C. Simon, H. De Riedmatten, and N. Gisin, Quantum repeaters based on atomic ensembles and linear optics, Reviews of Modern Physics83, 33 – 80 (2011)

    2011

  10. [17]

    Kraus, W

    B. Kraus, W. Tittel, N. Gisin, M. Nilsson, S. Kr¨ oll, and J. Cirac, Quantum memory for nonstationary light fields based on controlled reversible inhomogeneous broaden- ing, Physical Review A—Atomic, Molecular, and Optical Physics73, 020302 (2006)

    2006

  11. [18]

    Saglamyurek, T

    E. Saglamyurek, T. Hrushevskyi, A. Rastogi, K. Hes- hami, and L. J. LeBlanc, Coherent storage and manipu- lation of broadband photons via dynamically controlled autler–townes splitting, Nature Photonics12, 774 (2018)

    2018

  12. [19]

    Julsgaard, J

    B. Julsgaard, J. Sherson, J. I. Cirac, J. Flur´ aˇ sek, and E. S. Polzik, Experimental demonstration of quantum memory for light, Nature432, 482 (2004)

    2004

  13. [20]

    J. Guo, X. Feng, P. Yang, Z. Yu, L. Chen, C.-H. Yuan, and W. Zhang, High-performance raman quantum mem- ory with optimal control in room temperature atoms, Na- ture communications10, 148 (2019)

    2019

  14. [21]

    L. Ma, O. Slattery, and X. Tang, Optical quantum mem- ory based on electromagnetically induced transparency, Journal of Optics19, 043001 (2017)

    2017

  15. [22]

    Afzelius, C

    M. Afzelius, C. Simon, H. De Riedmatten, and N. Gisin, Multimode quantum memory based on atomic frequency combs, Physical Review A—Atomic, Molecular, and Op- tical Physics79, 052329 (2009)

    2009

  16. [23]

    A. I. Lvovsky, B. C. Sanders, and W. Tittel, Optical quantum memory, Nature photonics3, 706 (2009)

    2009

  17. [24]

    Heshami, D

    K. Heshami, D. G. England, P. C. Humphreys, P. J. Bustard, V. M. Acosta, J. Nunn, and B. J. Sussman, Quantum memories: emerging applications and recent advances, Journal of modern optics63, 2005 (2016)

    2016

  18. [25]

    Tittel, M

    W. Tittel, M. Afzelius, T. Chaneli` ere, R. L. Cone, S. Kr¨ oll, S. A. Moiseev, and M. Sellars, Photon-echo quantum memory in solid state systems, Laser & Pho- tonics Reviews4, 244 (2010)

    2010

  19. [26]

    Rastogi, E

    A. Rastogi, E. Saglamyurek, T. Hrushevskyi, S. Hubele, and L. J. Leblanc, Discerning quantum memories based on electromagnetically-induced-transparency and autler- townes-splitting protocols, Physical Review A100, 012314 (2019)

    2019

  20. [27]

    Businger, L

    M. Businger, L. Nicolas, T. S. Mejia, A. Ferrier, P. Gold- ner, and M. Afzelius, Non-classical correlations over 1250 modes between telecom photons and 979-nm photons stored in 171Yb3+ : Y2SiO5, Nature communications13, 6438 (2022)

    2022

  21. [28]

    S.-H. Wei, B. Jing, X.-Y. Zhang, J.-Y. Liao, H. Li, L.- X. You, Z. Wang, Y. Wang, G.-W. Deng, H.-Z. Song, et al., Quantum storage of 1650 modes of single photons at telecom wavelength, npj Quantum Information10, 19 (2024)

    2024

  22. [29]

    Laplane, P

    C. Laplane, P. Jobez, J. Etesse, N. Timoney, N. Gisin, and M. Afzelius, Multiplexed on-demand storage of po- larization qubits in a crystal, New Journal of Physics18, 013006 (2015)

    2015

  23. [30]

    A. Ortu, A. Holz¨ apfel, J. Etesse, and M. Afzelius, Stor- age of photonic time-bin qubits for up to 20 ms in a rare-earth doped crystal, npj Quantum Information8, 10.1038/s41534-022-00541-3 (2022)

    2022 doi

  24. [31]

    Y.-W. Cho, G. Campbell, J. Everett, J. Bernu, D. Hig- ginbottom, M. Cao, J. Geng, N. Robins, P. Lam, and B. Buchler, Highly efficient optical quantum memory with long coherence time in cold atoms, Optica3, 100 – 107 (2016)

    2016

  25. [32]

    E. L. Hahn, Spin echoes, Physical review80, 580 (1950)

    1950

  26. [34]

    Damon, M

    V. Damon, M. Bonarota, A. Louchet-Chauvet, T. Chaneli` ere, and J.-l. L. Gou¨ et, Revival of si- lenced echo and quantum memory for light, New Journal of Physics13, 093031 (2011)

    2011

  27. [36]

    Demeter, Adiabatic passage in photon-echo quan- tum memories, Physical Review A88, 10.1103/phys- reva.88.052316 (2013)

    G. Demeter, Adiabatic passage in photon-echo quan- tum memories, Physical Review A88, 10.1103/phys- reva.88.052316 (2013)

    2013 doi

  28. [37]

    Lauro, T

    R. Lauro, T. Chaneli` ere, and J.-L. Le Gou¨ et, Adiabatic 12 refocusing of nuclear spins in tm3+: Yag, Physical Review B—Condensed Matter and Materials Physics83, 035124 (2011)

    2011

  29. [38]

    Garwood and L

    M. Garwood and L. DelaBarre, The return of the fre- quency sweep: Designing adiabatic pulses for contempo- rary nmr, Journal of Magnetic Resonance153, 155 – 177 (2001)

    2001

  30. [39]

    M. M. T. Loy, Observation of population inversion by optical adiabatic rapid passage, Physical Review Letters 32, 814 – 817 (1974)

    1974

  31. [40]

    Dumez, Frequency-swept pulses for ultrafast spa- tially encoded nmr, Journal of Magnetic Resonance323, 106817 (2021)

    J.-N. Dumez, Frequency-swept pulses for ultrafast spa- tially encoded nmr, Journal of Magnetic Resonance323, 106817 (2021)

    2021

  32. [41]

    O’Sullivan, O

    J. O’Sullivan, O. W. Kennedy, K. Debnath, J. Alexander, C. W. Zollitsch, M. ˇSim˙ enas, A. Hashim, C. N. Thomas, S. Withington, I. Siddiqi,et al., Random-access quantum memory using chirped pulse phase encoding, Physical Re- view X12, 041014 (2022)

    2022

  33. [42]

    Mebner, E

    L. Mebner, E. Robertson, L. Esguerra, K. L¨ udge, and J. Wolters, Multiplexed random-access optical memory in warm cesium vapor, Optics Express31, 10150 – 10158 (2023)

    2023

  34. [43]

    See the Supplemental Material,

  35. [44]

    Min´ aˇ r, N

    J. Min´ aˇ r, N. Sangouard, M. Afzelius, H. de Riedmatten, and N. Gisin, Spin-wave storage using chirped control fields in atomic frequency comb-based quantum mem- ory, Physical Review A—Atomic, Molecular, and Optical Physics82, 042309 (2010)

    2010

  36. [45]

    Tiranov, A

    A. Tiranov, A. Ortu, S. Welinski, A. Ferrier, P. Goldner, N. Gisin, and M. Afzelius, Spectroscopic study of hyper- fine properties in 171Yb3+ : Y 2SiO5, Physical Review B 98, 10.1103/PhysRevB.98.195110 (2018)

    2018 doi

  37. [46]

    Crisp, Propagation of small-area pulses of coherent light through a resonant medium, Physical Review A1, 1604 – 1611 (1970)

    M. Crisp, Propagation of small-area pulses of coherent light through a resonant medium, Physical Review A1, 1604 – 1611 (1970)

    1970

  38. [47]

    Conolly, G

    S. Conolly, G. Glover, D. Nishimura, and A. Macovski, A reduced power selective adiabatic spin-echo pulse se- quence, Magnetic Resonance in Medicine18, 28 – 38 (1991)

    1991

  39. [48]

    Welinski, A

    S. Welinski, A. Tiranov, M. Businger, A. Ferrier, M. Afzelius, and P. Goldner, Coherence time extension by large-scale optical spin polarization in a rare-earth doped crystal, Physical Review X10, 031060 (2020)

    2020

  40. [49]

    Chiossi, E

    F. Chiossi, E. Lafitte-Houssat, A. Ferrier, S. Welinski, L. Morvan, P. Berger, D. Serrano, M. Afzelius, and P. Goldner, Optical coherence and spin population dy- namics in Yb3+ : Y2SiO5 single crystals, Physical Review B109, 094114 (2024)

    2024

  41. [50]

    Bonarota, J

    M. Bonarota, J. Dajczgewand, A. Louchet-Chauvet, J.- l. L. Gou¨ et, and T. Chaneli` ere, Photon echo with a few photons in two-level atoms, Laser Physics24, 094003 (2014)

    2014

  42. [51]

    Simon, H

    C. Simon, H. De Riedmatten, M. Afzelius, N. Sangouard, H. Zbinden, and N. Gisin, Quantum repeaters with pho- ton pair sources and multimode memories, Physical re- view letters98, 190503 (2007)

    2007

  43. [52]

    A. Ortu, J. V. Rakonjac, A. Holz¨ apfel, A. Seri, S. Grandi, M. Mazzera, H. de Riedmatten, and M. Afzelius, Multi- mode capacity of atomic-frequency comb quantum mem- ories, Quantum Science and Technology7, 035024 (2022)

    2022

  44. [53]

    Dajczgewand, R

    J. Dajczgewand, R. Ahlefeldt, T. B¨ ottger, A. Louchet- Chauvet, J.-L. Le Gou¨ et, and T. Chaneliere, Optical memory bandwidth and multiplexing capacity in the er- bium telecommunication window, New Journal of Physics 17, 023031 (2015)

    2015

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