104 citations · 1k across the 57 of their papers we have counts for
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quant-ph2010★ 17 cited
Description of thermal entanglement with the static path plus random-phase approximation
N. Canosa, J. M. Matera, R. Rossignoli
We discuss the application of the static path plus random phase approximation (SPA+RPA) and the ensuing mean field+RPA treatment to the evaluation of entanglement in composite quan…
quant-ph2010★ 25 cited
Separability and entanglement in finite dimer-type chains in general transverse fields
Norma Canosa, Raul Rossignoli, Juan Mauricio Matera
We determine the conditions under which general dimer-type spin chains with couplings of arbitrary range in a general transverse field will exhibit an exactly separable parit…