Phase-dependent role of dissipation across the Aubry-Andr\'e-Harper transition
Pith reviewed 2026-05-25 05:36 UTC · model grok-4.3
The pith
Bath memory reshapes transport in the extended phase of the Aubry-André-Harper model but only renormalizes timescales in the localized phase
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
For a single particle initialized at the chain center, bath memory qualitatively reshapes the dynamical generator in the extended phase, producing transport patterns that cannot be reduced to a simple rescaling of time; by contrast, in the localized phase the bath activates motion between localized states and bath memory mainly renormalizes dynamical timescales, so that localization functions as a simple filter of non-Markovian effects.
What carries the argument
The Aubry-André-Harper localization transition acting as a phase-dependent filter on non-Markovian bath memory in the open-system dynamical generator
Load-bearing premise
The chosen non-Markovian bath model with finite correlation decay time together with a single-particle initial condition at the chain center are sufficient to expose the essential difference in how memory affects the two phases.
What would settle it
Numerical or experimental comparison, in the extended phase, between the full non-Markovian evolution and a time-rescaled Markovian counterpart, checking whether the spatial transport profiles coincide or deviate qualitatively.
Figures
read the original abstract
We study transport across the Aubry-Andr\'e-Harper localization transition in the presence of non-Markovian dissipation. For a single particle initially at the center of the chain, we show that bath memory (i.e., finite decay time of bath correlations) plays distinct roles in the two phases. In the extended phase, bath memory qualitatively reshapes the dynamical generator, thereby producing transport patterns that cannot be reduced to a simple rescaling of time. By contrast, in the localized phase, the bath activates motion between localized states and bath memory mainly renormalizes the dynamical timescales. Our results identify localization as a simple filter of non-Markovian effects: memory restructures transport in the extended regime, but survives mainly as a timescale renormalization in the deeply localized regime.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The manuscript examines transport of a single particle initially at the chain center in the Aubry-André-Harper model subject to non-Markovian dissipation. It reports that bath memory (finite correlation decay time) plays qualitatively distinct roles across the localization transition: in the extended phase it reshapes the dynamical generator to produce transport patterns irreducible to time rescaling, whereas in the localized phase the bath enables inter-site motion and memory effects act primarily as timescale renormalization. Localization is thereby positioned as a filter that converts non-Markovian structure into simple renormalization only in the deeply localized regime.
Significance. If the reported distinction is robust, the work supplies a concrete illustration of how localization can selectively filter non-Markovian bath effects, separating qualitative dynamical restructuring from mere rate renormalization. This supplies a useful diagnostic for open quantum dynamics in disordered systems and may inform studies of environment-assisted transport. No machine-checked proofs or parameter-free derivations are present; the result rests on numerical evolution under a specific exponential memory kernel and central initial condition.
major comments (2)
- [extended-phase results] § on extended-phase transport (likely the main results figure comparing different memory times): the central assertion that memory 'qualitatively reshapes the dynamical generator' such that transport 'cannot be reduced to a simple rescaling of time' is load-bearing yet unsupported by an explicit test. No attempt is shown to collapse the extended-phase curves onto a single master curve via a single fitted time-rescaling factor (matched e.g. to short-time or long-time asymptotics). Without this check the claimed qualitative distinction from the localized-phase renormalization behavior remains unanchored.
- [Methods] Methods section defining the non-Markovian generator and the single-particle central initial condition: the phase-dependent filtering conclusion is demonstrated only for this narrow setup (exponential memory kernel, particle starting at chain center). No additional initial conditions or memory kernels are reported to test whether the reported distinction is generic or specific to the chosen protocol.
minor comments (2)
- [Methods] Notation for the memory kernel and the effective dynamical generator should be introduced with an explicit equation number in the methods section to allow direct comparison with the rescaling test requested above.
- [Figures] Figure captions for the transport data should state the precise observable (e.g., mean-squared displacement or participation ratio) and the range of memory times shown.
Simulated Author's Rebuttal
We thank the referee for the careful reading and constructive suggestions. We address the two major comments below and will revise the manuscript accordingly.
read point-by-point responses
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Referee: [extended-phase results] § on extended-phase transport (likely the main results figure comparing different memory times): the central assertion that memory 'qualitatively reshapes the dynamical generator' such that transport 'cannot be reduced to a simple rescaling of time' is load-bearing yet unsupported by an explicit test. No attempt is shown to collapse the extended-phase curves onto a single master curve via a single fitted time-rescaling factor (matched e.g. to short-time or long-time asymptotics). Without this check the claimed qualitative distinction from the localized-phase renormalization behavior remains unanchored.
Authors: The referee is correct that an explicit collapse test was not included. In the revised manuscript we will add a supplementary analysis that attempts to rescale the extended-phase transport curves for different memory times onto a single master curve using a fitted factor (anchored to both short-time ballistic regime and long-time asymptotics). We anticipate that no single factor will achieve collapse, thereby anchoring the claim that memory effects cannot be reduced to timescale renormalization in the extended phase. This will be presented alongside the existing data. revision: yes
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Referee: [Methods] Methods section defining the non-Markovian generator and the single-particle central initial condition: the phase-dependent filtering conclusion is demonstrated only for this narrow setup (exponential memory kernel, particle starting at chain center). No additional initial conditions or memory kernels are reported to test whether the reported distinction is generic or specific to the chosen protocol.
Authors: We chose the central initial condition because it directly measures unbiased transport across the full chain and the exponential kernel because it is the minimal model with a single tunable memory time. The manuscript already notes that the distinction is demonstrated for this protocol. We will expand the discussion section to explicitly state the scope of the present numerics and to indicate that testing other kernels and initial conditions is a natural direction for follow-up work. No new simulations will be added in this revision. revision: partial
Circularity Check
No circularity: central phase-dependent distinction derived from model dynamics, not reduced to input definitions or self-citations
full rationale
The abstract and provided text present the core claim—that bath memory qualitatively reshapes transport in the extended phase (cannot be reduced to time rescaling) while only renormalizing timescales in the localized phase—as a direct consequence of studying the non-Markovian model on the AAH chain with central initial condition. No equations, parameters, or results are shown to be fitted to subsets and then relabeled as predictions; no self-citations are invoked as load-bearing uniqueness theorems; the distinction is not defined in terms of itself. The derivation chain therefore remains self-contained against external benchmarks (numerical evolution of the open-system dynamics), consistent with a normal non-circular finding.
Axiom & Free-Parameter Ledger
Lean theorems connected to this paper
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IndisputableMonolith/Constants.leanphi_golden_ratio echoes?
echoesECHOES: this paper passage has the same mathematical shape or conceptual pattern as the Recognition theorem, but is not a direct formal dependency.
beta = (sqrt(5)-1)/2 is the inverse golden ratio... Vj = h cos(2 pi beta j + phi)
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IndisputableMonolith/Cost/FunctionalEquation.leanJcost_pos_of_ne_one echoes?
echoesECHOES: this paper passage has the same mathematical shape or conceptual pattern as the Recognition theorem, but is not a direct formal dependency.
in the localized phase... bath memory mainly renormalizes the dynamical timescales... time rescaled as t-tilde = Gamma_eff t
What do these tags mean?
- matches
- The paper's claim is directly supported by a theorem in the formal canon.
- supports
- The theorem supports part of the paper's argument, but the paper may add assumptions or extra steps.
- extends
- The paper goes beyond the formal theorem; the theorem is a base layer rather than the whole result.
- uses
- The paper appears to rely on the theorem as machinery.
- contradicts
- The paper's claim conflicts with a theorem or certificate in the canon.
- unclear
- Pith found a possible connection, but the passage is too broad, indirect, or ambiguous to say the theorem truly supports the claim.
Reference graph
Works this paper leans on
-
[1]
P. W. Anderson, Absence of diffusion in certain random lattices, Phys. Rev.109, 1492 (1958)
work page 1958
-
[2]
F. Alet and N. Laflorencie, Many-body localization: An introduction and selected topics, Comptes Rendus. Physique19, 498–525 (2018)
work page 2018
- [3]
-
[4]
D. A. Abanin, E. Altman, I. Bloch, and M. Serbyn, Col- loquium: Many-body localization, thermalization, and entanglement, Rev. Mod. Phys.91, 021001 (2019)
work page 2019
-
[5]
P. Sierant and J. Zakrzewski, Challenges to observation of many-body localization, Phys. Rev. B105, 224203 (2022)
work page 2022
-
[6]
P. Sierant, M. Lewenstein, A. Scardicchio, L. Vidmar, and J. Zakrzewski, Many-body localization in the age of classical computing*, Reports on Progress in Physics88, 026502 (2025)
work page 2025
-
[7]
J. Settino, N. W. Talarico, F. Cosco, F. Plastina, S. Man- iscalco, and N. Lo Gullo, Emergence of anomalous dy- namics from the underlying singular continuous spectrum in interacting many-body systems, Phys. Rev. B101, 144303 (2020)
work page 2020
-
[8]
S. Aubry and G. Andr´ e, Analyticity breaking and ander- son localization in incommensurate lattices, Ann. Israel Phys. Soc3, 18
-
[9]
P. G. Harper, Single band motion of conduction electrons in a uniform magnetic field, Proceedings of the Physical Society. Section A68, 874–878 (1955)
work page 1955
-
[10]
M. Schreiber, S. S. Hodgman, P. Bordia, H. P. L¨ uschen, M. H. Fischer, R. Vosk, E. Altman, U. Schneider, and I. Bloch, Observation of many-body localization of inter- acting fermions in a quasirandom optical lattice, Science 349, 842–845 (2015)
work page 2015
-
[11]
M. Modugno, Exponential localization in one- dimensional quasi-periodic optical lattices, New Journal of Physics11, 033023 (2009)
work page 2009
-
[12]
G. Modugno, Anderson localization in bose–einstein con- densates, Reports on Progress in Physics73, 102401 (2010)
work page 2010
- [13]
-
[14]
E. Gottlob, D. S. Borgnia, R.-J. Slager, and U. Schnei- der, Quasiperiodicity protects quantized transport in dis- ordered systems without gaps, PRX Quantum6, 020359 (2025)
work page 2025
-
[15]
N. Mac´ e, N. Laflorencie, and F. Alet, Many-body local- ization in a quasiperiodic fibonacci chain, SciPost Physics 6, 10.21468/scipostphys.6.4.050 (2019)
-
[16]
J. Zhu, Y. Qin, Y. Guo, J. Wu, S.-J. Yang, Y. Wang, and J. Fan, Quantum diffusion in a photonic fibonacci chain: From localization to ballistic dynamics, Phys. Rev. Lett. 136, 140402 (2026)
work page 2026
-
[17]
A. ˇStrkalj, E. V. H. Doggen, I. V. Gornyi, and O. Zilber- berg, Many-body localization in the interpolating aubry- andr´ e-fibonacci model, Phys. Rev. Res.3, 033257 (2021). 6
work page 2021
-
[18]
H. Tabanelli, C. Castelnovo, and A. ˇStrkalj, Reentrant localization transitions and anomalous spectral proper- ties in off-diagonal quasiperiodic systems, Phys. Rev. B 110, 184208 (2024)
work page 2024
- [19]
- [20]
- [21]
-
[22]
Longhi, Dephasing-induced mobility edges in qua- sicrystals, Phys
S. Longhi, Dephasing-induced mobility edges in qua- sicrystals, Phys. Rev. Lett.132, 236301 (2024)
work page 2024
-
[23]
D. S. Bhakuni, T. L. M. Lezama, and Y. B. Lev, Noise- induced transport in the Aubry-Andr´ e-Harper model, SciPost Phys. Core7, 023 (2024)
work page 2024
-
[24]
T. L. M. Lezama and Y. B. Lev, Logarithmic, noise- induced dynamics in the Anderson insulator, SciPost Phys.12, 174 (2022)
work page 2022
-
[25]
X. Turkeshi, D. Barbier, L. F. Cugliandolo, M. Schir` o, and M. Tarzia, Destruction of localization by thermal inclusions: Anomalous transport and Griffiths effects in the Anderson and Andr´ e-Aubry-Harper models, SciPost Phys.12, 189 (2022)
work page 2022
-
[26]
X. Yang, X.-P. Jiang, Z. Wei, Y. Wang, and L. Pan, Dissipation-induced transition between delocalization and localization in the three-dimensional anderson model, Phys. Rev. B111, 134203 (2025)
work page 2025
-
[27]
Y. Liu, Z. Wang, C. Yang, J. Jie, and Y. Wang, Dissipation-induced extended-localized transition, Phys. Rev. Lett.132, 216301 (2024)
work page 2024
-
[28]
H. Cui, M. Qin, L. Tang, H. Shen, and X. Yi, Localization-enhanced dissipation in a generalized aubry- andr´ e-harper model coupled with ohmic baths, Physics Letters A448, 128314 (2022)
work page 2022
-
[29]
M. Xu, Z. Wei, X.-P. Jiang, and L. Pan, Expedited ther- malization dynamics in incommensurate systems, Phys. Rev. A112, 042210 (2025)
work page 2025
- [30]
-
[31]
E. T. Kokkinakis, K. G. Makris, and E. N. Economou, Dephasing-induced jumps in non-hermitian disordered lattices, Phys. Rev. B111, 214204 (2025)
work page 2025
-
[32]
J. Bonˇ ca, S. A. Trugman, and M. Mierzejewski, Dynam- ics of the one-dimensional anderson insulator coupled to various bosonic baths, Phys. Rev. B97, 174202 (2018)
work page 2018
-
[33]
S. Weidemann, M. Kremer, S. Longhi, and A. Szameit, Coexistence of dynamical delocalization and spectral lo- calization through stochastic dissipation, Nature Photon- ics15, 576–581 (2021)
work page 2021
-
[34]
C. Bechinger, R. Di Leonardo, H. L¨ owen, C. Reichhardt, G. Volpe, and G. Volpe, Active particles in complex and crowded environments, Rev. Mod. Phys.88, 045006 (2016)
work page 2016
-
[35]
M. te Vrugt, B. Liebchen, and M. E. Cates, What ex- actly is ’active matter’? (2025), arXiv:2507.21621 [cond- mat.soft]
-
[36]
A. P. Antonov, Y. Zheng, B. Liebchen, and H. L¨ owen, Engineering active motion in quantum matter, Phys. Rev. Res.7, 033008 (2025)
work page 2025
- [37]
- [38]
-
[39]
J. Gipouloux, M. Brunelli, L. Cugliandolo, R. Fazio, and M. Schir` o, Active quantum particles from engineered dis- sipation (2026), arXiv:2603.19094 [quant-ph]
-
[40]
M. Yamagishi, N. Hatano, and H. Obuse, Proposal of a quantum version of active particles via a nonunitary quantum walk, Scientific Reports14, 10.1038/s41598- 024-78986-z (2024)
-
[41]
Y. Tanimura, Numerically “exact” approach to open quantum dynamics: The hierarchical equations of mo- tion (heom), The Journal of Chemical Physics153, 10.1063/5.0011599 (2020)
-
[42]
J. Jin, X. Zheng, and Y. Yan, Exact dynamics of dissi- pative electronic systems and quantum transport: Hier- archical equations of motion approach, The Journal of Chemical Physics128, 10.1063/1.2938087 (2008)
-
[43]
B. Debecker, J. Martin, and F. Damanet, Controlling matter phases beyond markov, Phys. Rev. Lett.133, 140403 (2024)
work page 2024
-
[44]
N. Lambert, E. Gigu` ere, P. Menczel, B. Li, P. Hopf, G. Su´ arez, M. Gali, J. Lishman, R. Gadhvi, R. Agar- wal, A. Galicia, N. Shammah, P. Nation, J. Johansson, S. Ahmed, S. Cross, A. Pitchford, and F. Nori, Qutip 5: The quantum toolbox in python, Physics Reports1153, 1–62 (2026)
work page 2026
-
[45]
H.-P. Breuer and F. Petruccione,The Theory of Open Quantum Systems(Oxford University PressOxford, 2007)
work page 2007
-
[47]
F. Campaioli, J. H. Cole, and H. Hapuarachchi, Quan- tum master equations: Tips and tricks for quantum op- tics, quantum computing, and beyond, PRX Quantum5, 020202 (2024)
work page 2024
-
[48]
F. Damanet, E. Mascarenhas, D. Pekker, and A. J. Daley, Controlling quantum transport via dissipation engineer- ing, Phys. Rev. Lett.123, 180402 (2019)
work page 2019
-
[49]
H. Li, C. Shang, T. Kuwahara, and T. V. Vu, Macro- scopic particle transport in dissipative long-range bosonic systems, Nature Communications 10.1038/s41467-026- 70881-7 (2026)
-
[50]
B. B´ egoc, G. Cichelli, S. P. Singh, F. Bensch, V. Amico, F. Perciavalle, D. Rossini, L. Amico, and O. Morsch, Con- trolled dissipation for rydberg atom experiments, Phys. Rev. A112, 023312 (2025)
work page 2025
-
[51]
T. Chen, C. Huang, J. P. Covey, and B. Gadway, Collec- tive dissipation engineering of interacting rydberg atoms, Phys. Rev. Lett.135, 253402 (2025)
work page 2025
-
[52]
Y. Zhao, Y.-Q. Yang, W. Li, and X.-Q. Shao, Dissipative stabilization of high-dimensional ghz states for neutral atoms, Applied Physics Letters124, 10.1063/5.0192602 (2024)
-
[53]
F. Verstraete, M. M. Wolf, and J. Ignacio Cirac, Quan- tum computation and quantum-state engineering driven 7 by dissipation, Nature Physics5, 633–636 (2009)
work page 2009
-
[54]
M. Tian, Z. Bi, T. Iadecola, and B. Gadway, Dissipa- tive preparation of correlated quantum states in dipolar rydberg arrays (2026), arXiv:2604.18542 [quant-ph]
work page internal anchor Pith review Pith/arXiv arXiv 2026
-
[55]
H.-L. Zhang, P.-R. Han, F. Wu, W. Ning, Z.-B. Yang, and S.-B. Zheng, Experimental observation of non- markovian quantum exceptional points, Phys. Rev. Lett. 135, 230203 (2025)
work page 2025
-
[56]
V. So, M. Duraisamy Suganthi, M. Zhu, A. Menon, G. Tomaras, R. Zhuravel, H. Pu, P. G. Wolynes, J. N. Onuchic, and G. Pagano, Quantum simulation of charge and exciton transfer in multi-mode models using en- gineered reservoirs, Nature Communications17, 438 (2025)
work page 2025
-
[57]
V. So, M. D. Suganthi, A. Menon, M. Zhu, R. Zhu- ravel, H. Pu, P. G. Wolynes, J. N. Onuchic, and G. Pagano, Trapped-ion quantum simula- tion of electron transfer models with tunable dis- sipation, Science Advances10, eads8011 (2024), https://www.science.org/doi/pdf/10.1126/sciadv.ads8011
-
[58]
K. Sun, M. Kang, H. Nuomin, G. Schwartz, D. N. Be- ratan, K. R. Brown, and J. Kim, Quantum simulation of spin-boson models with structured bath, Nature Com- munications16, 4042 (2025)
work page 2025
-
[59]
J. L´ eonard, S. Kim, M. Rispoli, A. Lukin, R. Schittko, J. Kwan, E. Demler, D. Sels, and M. Greiner, Probing the onset of quantum avalanches in a many-body localized system, Nature Physics19, 481–485 (2023)
work page 2023
-
[60]
B. Debecker, J. Martin, and F. Damanet, Spectral the- ory of non-markovian dissipative phase transitions, Phys. Rev. A110, 042201 (2024)
work page 2024
-
[61]
B. Debecker, L. Pausch, J. Louvet, T. Bastin, J. Martin, and F. Damanet, Role of non-markovian dissipation in quantum phase transitions: Tricriticality, spin squeezing, and directional symmetry breaking, Phys. Rev. A112, 012210 (2025)
work page 2025
-
[62]
Y.-T. Huang, P.-C. Kuo, N. Lambert, M. Cirio, S. Cross, S.-L. Yang, F. Nori, and Y.-N. Chen, An efficient Ju- lia framework for hierarchical equations of motion in open quantum systems, Communications Physics6, 313 (2023)
work page 2023
-
[63]
S. Bai, S. Zhang, C. Huang, and Q. Shi, Hierarchical equations of motion for quantum chemical dynamics: Re- cent methodology developments and applications, Ac- counts of Chemical Research57, 3151–3160 (2024)
work page 2024
- [64]
-
[65]
N. Lambert, T. Raheja, S. Cross, P. Menczel, S. Ahmed, A. Pitchford, D. Burgarth, and F. Nori, Qutip-bofin: A bosonic and fermionic numerical hierarchical-equations- of-motion library with applications in light-harvesting, quantum control, and single-molecule electronics, Phys. Rev. Res.5, 013181 (2023)
work page 2023
-
[66]
See Supplemental Material for additional information
-
[67]
K. Macieszczak, M. Gut ¸˘ a, I. Lesanovsky, and J. P. Garra- han, Towards a theory of metastability in open quantum dynamics, Phys. Rev. Lett.116, 240404 (2016)
work page 2016
-
[68]
K. Macieszczak, D. C. Rose, I. Lesanovsky, and J. P. Gar- rahan, Theory of classical metastability in open quantum systems, Phys. Rev. Res.3, 033047 (2021)
work page 2021
- [69]
-
[70]
X. Turkeshi, A. Biella, R. Fazio, M. Dalmonte, and M. Schir´ o, Measurement-induced entanglement transi- tions in the quantum ising chain: From infinite to zero clicks, Phys. Rev. B103, 224210 (2021)
work page 2021
-
[71]
S. Maniscalco, F. Francica, R. L. Zaffino, N. Lo Gullo, and F. Plastina, Protecting entanglement via the quan- tum zeno effect, Phys. Rev. Lett.100, 090503 (2008)
work page 2008
-
[72]
G. Piccitto, D. Rossini, and A. Russomanno, The im- pact of different unravelings in a monitored system of free fermions, The European Physical Journal B97, 10.1140/epjb/s10051-024-00725-0 (2024)
- [73]
-
[74]
D. W. Sch¨ onleber, A. Eisfeld, M. Genkin, S. Whitlock, and S. W¨ uster, Quantum simulation of energy trans- port with embedded rydberg aggregates, Phys. Rev. Lett. 114, 123005 (2015)
work page 2015
- [75]
-
[76]
W. Gou, T. Chen, D. Xie, T. Xiao, T.-S. Deng, B. Gad- way, W. Yi, and B. Yan, Tunable nonreciprocal quantum transport through a dissipative aharonov-bohm ring in ultracold atoms, Phys. Rev. Lett.124, 070402 (2020)
work page 2020
-
[77]
G. Pellitteri, V. Giovannetti, and V. Cavina, Exact quan- tum transport in non-markovian open gaussian systems (2026), arXiv:2602.21190 [quant-ph]
-
[78]
V. Stanzione, A. Civolani, J. Y. Malo, and M. L. Chio- falo, Tailoring transport in quantum spin chains via dis- order and collisions (2025), arXiv:2502.15515 [quant-ph]
-
[79]
A. Mercurio, Y.-T. Huang, L.-X. Cai, Y.-N. Chen, V. Savona, and F. Nori, QuantumToolbox.jl: An efficient Julia framework for simulating open quantum systems, Quantum9, 1866 (2025)
work page 2025
-
[80]
Phase-dependent role of dissipation across the Aubry-Andr´ e-Harper transition
T. Baumgratz, M. Cramer, and M. B. Plenio, Quantify- ing coherence, Phys. Rev. Lett.113, 140401 (2014). 8 Supplemental Material for “Phase-dependent role of dissipation across the Aubry-Andr´ e-Harper transition” DET AILED ANAL YSIS OF THE DEEPL Y LOCALIZED REGIME γ=2 κ=2 ,ω0=0 γ=5 γ=5 t γ=1 0 γ=5 ,ω0=0 κ=0 .2 κ =3 t 2000 κ =5 γ=5 ,κ =2 ω0 =1 ω0 =3 2000 t...
work page 2014
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