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Phase-dependent role of dissipation across the Aubry-André-Harper transition
Suárez, Gerardo José; Debecker, Baptiste; Cosco, F et al.
2026
 

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Abstract :
[en] We study transport across the Aubry-André-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.
Disciplines :
Physics
Author, co-author :
Suárez, Gerardo José ;  Université de Liège - ULiège > Département de physique
Debecker, Baptiste ;  Université de Liège - ULiège > Complex and Entangled Systems from Atoms to Materials (CESAM)
Cosco, F;  Quantum algorithms and software, VTT Technical Research Centre of Finland Ltd, Espoo, Finland
Plastina, F;  Dipartimento di Fisica, Arcavacata di Rende (CS), Università della Calabria, Italy ; INFN, Sezione LNF, gruppo collegato di Cosenza
Damanet, François  ;  Université de Liège - ULiège > Complex and Entangled Systems from Atoms to Materials (CESAM)
Lo Gullo, N;  Dipartimento di Fisica, Arcavacata di Rende (CS), Università della Calabria, Italy ; INFN, Sezione LNF, gruppo collegato di Cosenza
Perciavalle, F;  Dipartimento di Fisica, Arcavacata di Rende (CS), Università della Calabria, Italy ; INFN, Sezione LNF, gruppo collegato di Cosenza
Language :
English
Title :
Phase-dependent role of dissipation across the Aubry-André-Harper transition
Publication date :
21 May 2026
Available on ORBi :
since 04 August 2026

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