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Open Quantum Systems Decoherence

Localized Thermal States

arXiv

Authors: Fausto Borgonovi, Felix M. Izrailev

Year

2017

Paper ID

7574

Status

Preprint

Abstract Read

~2 min

Abstract Words

106

Citations

N/A

Abstract

It is believed that thermalization in closed systems of interacting particles can occur only when the eigenstates are fully delocalized and chaotic in the preferential (unperturbed) basis of the total Hamiltonian. Here we demonstrate that at variance with this common belief the typical situation in the systems with two-body inter-particle interaction is much more complicated and allows to treat as thermal even eigenstates that are not fully delocalized. Using a semi-analytical approach we establish the conditions for the emergence of such thermal states in a model of randomly interacting bosons. Our numerical data show an excellent correspondence with the predicted properties of {\it localized thermal eigenstates}.

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It is believed that thermalization in closed systems of interacting particles can occur only when the eigenstates are fully delocalized and chaotic in the preferential...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1709.03258 [2] arXiv https://arxiv.org/abs/1709.03258 [3] Publisher https://arxiv.org/abs/1709.03258

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