First-principle construction of U(1) symmetric matrix product states

Abstract

The algorithm to calculate the sets of symmetry sectors for virtual indices of U(1) symmetric matrix product states (MPS) is described. Principal differences between open (OBC) and periodic (PBC) boundary conditions are stressed, and the extension of PBC MPS algorithm to projected entangled pair states (PEPS) is outlined.

arXiv comment7 pages (13 pages in the journal version), 1 figure

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Cited by in corpus (1)

• Revealing quantum phase string effect in doped Mott-insulator: a tensor network state approach