Fermionic implementation of projected entangled pair states algorithm

Autor(en)

Iztok Pizorn, Frank Verstraete

Abstrakt

We present and implement an efficient variational method to simulate two-dimensional finite-size fermionic quantum systems by fermionic projected entangled pair states. The approach differs from the original one due to the fact that there is no need for an extra string bond for contracting the tensor network. The method is tested on a bilinear fermionic model on a square lattice for sizes up to ten by ten where good relative accuracy is achieved. Qualitatively good results are also obtained for an interacting fermionic system.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Journal

Physical Review B

Band

81

Anzahl der Seiten

8

ISSN

1098-0121

DOI

https://doi.org/10.1103/PhysRevB.81.245110

Publikationsdatum

06-2010

Peer-reviewed

Ja

ÖFOS 2012

103025 Quantenmechanik

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/b8e3d476-c865-449a-80b8-1baf476bc847