Fractality in nonequilibrium steady states of quasiperiodic systems
ID Varma, Vipin Kerala (Author), ID Mulatier, Clélia de (Author), ID Žnidarič, Marko (Author)

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PID: 20.500.12556/rul/3ad83d0d-2362-4785-b30e-edf5c052bd64
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We investigate the nonequilibrium response of quasiperiodic systems to boundary driving. In particular, we focus on the Aubry-André-Harper model at its metal-insulator transition and the diagonal Fibonacci model. We find that opening the system at the boundaries provides a viable experimental technique to probe its underlying fractality, which is reflected in the fractal spatial dependence of simple observables (such as magnetization) in the nonequilibrium steady state. We also find that the dynamics in the nonequilibrium steady state depends on the length of the chain chosen: generic length chains harbour qualitatively slower transport (different scaling exponent) than Fibonacci length chains, which is in turn slower than in the closed system. We conjecture that such fractal nonequilibrium steady states should arise in generic driven critical systems that have fractal properties.

Keywords:condensed matter physics, nonequilibrium dynamics, quantum systems, fractals
Work type:Scientific work (r2)
Typology:1.01 - Original Scientific Article
Organization:FMF - Faculty of Mathematics and Physics
Publication status in journal:Published
Article version:Postprint, final article version, accepted into publication
Publisher:American Physical Society
Number of pages:Str. 032130-1-032130-11
Numbering:Vol. 96, iss. 3
PID:20.500.12556/RUL-95809 This link opens in a new window
ISSN on article:2470-0045
DOI:10.1103/PhysRevE.96.032130 This link opens in a new window
COBISS.SI-ID:3128164 This link opens in a new window
American Physical Society
Publication date in RUL:21.09.2017
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Record is a part of a journal

Title:Physical review
Shortened title:Phys. rev., E
Publisher:American Physical Society
COBISS.SI-ID:2048366611 This link opens in a new window

Secondary language

Keywords:fizika kondenzirane snovi, neravnovesna dinamika, kvantni sistemi, fraktali


Funder:EC - European Commission
Funding programme:H2020
Project number:694544
Name:Open many-body non-equilibrium systems

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