104 citations · 1k across the 57 of their papers we have counts for
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quant-ph2017
Quantum Discord and entropic measures of quantum correlations: Optimization and behavior in finite spin chains
N. Canosa, M. Cerezo, N. Gigena +1
We discuss a generalization of the conditional entropy and one-way information deficit in quantum systems, based on general entropic forms. The formalism allows to consider simple…
quant-ph2017★ 12 cited
Spectrum and normal modes of non-hermitian quadratic boson operators
Javier Garcia, R. Rossignoli
We analyze the spectrum and normal mode representation of general quadratic bosonic forms not necessarily hermitian. It is shown that in the one-dimensional case such forms exh…
quant-ph2017★ 21 cited
Factorization and criticality in finite XXZ systems of arbitrary spin
M. Cerezo, R. Rossignoli, N. Canosa +1
We analyze ground state (GS) factorization in general arrays of spins with couplings immersed in nonuniform fields. It is shown that an exceptionally degenerate set of…