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Topological Order in the Projected Entangled-Pair States Formalism: Transfer Operator and Boundary Hamiltonians
We study the structure of topological phases and their boundaries in the projected entangled-pair states (PEPS) formalism. We show how topological order in a system can be identified from the structure of the PEPS transfer operator and subsequently use these findings to analyze the structure of the boundary Hamiltonian, acting …