Fermionic Implementation of Projected Pair States Algorithm

Author(s): I. Pižorn, F. Verstraete

Journal: Phys. Rev. B

Volume: 81

Page(s): 245110

Year: 2010

DOI Number: 10.1103/PhysRevB.81.245110

Link: Link to publication


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 bi-linear 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.

Note: http://arxiv.org/abs/1003.2743

File: Link to PDF

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