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quant-ph2016★ 3 cited
Pair entanglement in dimerized spin-s chains
A. Boette, R. Rossignoli, N. Canosa +1
We examine the pair entanglement in the ground state of finite dimerized spin- chains interacting through anisotropic couplings immersed in a transverse magnetic field, by…
quant-ph2014★ 6 cited
Generalized mean field description of entanglement in dimerized spin systems
A. Boette, R. Rossignoli, N. Canosa +1
We discuss a generalized self-consistent mean field (MF) treatment, based on the selection of an arbitrary subset of operators for representing the system density matrix, and its a…