ENCORE: An extended contractor renormalization algorithm

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چکیده

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ENCORE: An extended contractor renormalization algorithm.

Contractor renormalization (CORE) is a real-space renormalization-group method to derive effective Hamiltionians for microscopic models. The original CORE method is based on a real-space decomposition of the lattice into small blocks and the effective degrees of freedom on the lattice are tensor products of those on the small blocks. We present an extension of the CORE method that overcomes thi...

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ژورنال

عنوان ژورنال: Physical Review E

سال: 2009

ISSN: 1539-3755,1550-2376

DOI: 10.1103/physreve.79.046712