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Titel:

Evaluation of time-dependent correlators after a local quench in iPEPS: hole motion in the t-J model

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
Hubig, Claudius; Bohrdt, Annabelle; Knap, Michael; Grusdt, Fabian; Cirac, Ignacio
Abstract:
Infinite projected entangled pair states (iPEPS) provide a convenient variational description of infinite, translationally-invariant two-dimensional quantum states. However, the simulation of local excitations is not directly possible due to the translationally-invariant ansatz. Furthermore, as iPEPS are either identical or orthogonal, expectation values between different states as required during the evaluation of non-equal-time correlators are ill-defined. Here, we show that by introducing aux...     »
Zeitschriftentitel:
SciPost Physics 2020-02
Jahr:
2020
Band / Volume:
8
Heft / Issue:
2
Volltext / DOI:
doi:10.21468/scipostphys.8.2.021
Verlag / Institution:
Stichting SciPost
E-ISSN:
2542-4653
Publikationsdatum:
06.02.2020
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