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Title:

Isometric tensor network representations of two-dimensional thermal states

Document type:
Zeitschriftenaufsatz
Author(s):
Kadow, Wilhelm; Pollmann, Frank; Knap, Michael
Abstract:
Tensor networks provide a useful tool to describe low-dimensional complex many-body systems. Finding efficient algorithms to use these methods for finite-temperature simulations in two dimensions is a continuing challenge. Here, we use the class of recently introduced isometric tensor network states, which can also be directly realized with unitary gates on a quantum computer. We utilize a purification ansatz to efficiently represent thermal states of the transverse field Ising model. By perform...     »
Journal title:
Physical Review B 2023-05
Year:
2023
Journal volume:
107
Journal issue:
20
Fulltext / DOI:
doi:10.1103/physrevb.107.205106
Publisher:
American Physical Society (APS)
E-ISSN:
2469-99502469-9969
Date of publication:
03.05.2023
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