A1 Journal article (refereed)
Simulation of Matrix Product States For Dissipation and Thermalization Dynamics of Open Quantum Systems (2020)


Agasti, S. (2020). Simulation of Matrix Product States For Dissipation and Thermalization Dynamics of Open Quantum Systems. Journal of Physics Communications, 4(1), Article 015002. https://doi.org/10.1088/2399-6528/ab6141


JYU authors or editors


Publication details

All authors or editorsAgasti, Souvik

Journal or seriesJournal of Physics Communications

eISSN2399-6528

Publication year2020

Volume4

Issue number1

Article number015002

PublisherInstitute of Physics Publishing Ltd.

Place of PublicationBristol

Publication countryUnited Kingdom

Publication languageEnglish

DOIhttps://doi.org/10.1088/2399-6528/ab6141

Publication open accessOpenly available

Publication channel open accessOpen Access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/67671


Abstract

We transform the system/reservoir coupling model into a one-dimensional semi-infinite discrete chain through unitary transformation to simulate the open quantum system numerically with the help of time evolving block decimation (TEBD) algorithm. We apply the method to study the dynamics of dissipative systems. We also generate the thermal state of a multimode bath using minimally entangled typical thermal state (METTS) algorithm, and investigate the impact of the thermal bath on an empty system. For both cases, we give an extensive analysis of the impact of the modeling and simulation parameters, and compare the numerics with the analytics.


Keywordsquantum physicsalgorithms

Free keywordsopen quantum system; thermal bath; time-evolving block decimation algorithm; minimally entangled typical thermal states


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Ministry reportingYes

Reporting Year2020

JUFO rating1


Last updated on 2024-14-02 at 17:36