Simulation of Matrix Product States For Dissipation and Thermalization Dynamics of Open Quantum Systems
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
Published inJournal of Physics Communications
© 2020 The Author(s)
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.
PublisherInstitute of Physics Publishing Ltd.
Publication in research information system
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Related funder(s)Academy of Finland
Funding program(s)Research post as Academy Research Fellow, AoF
Additional information about fundingThis work was supported by the Academy of Finland under grant no. 275245.
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