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6 papers · 2 filters
Maximally correlated multipartite quantum states
J. Batle, M. Casas, A. Plastino
We investigate quantum states that posses both maximum entanglement and maximum discord between the pertinent parties. Since entanglement (discord) is defined only for bipartite (t…
A discussion on the origin of quantum probabilities
Federico Holik, Angel Plastino, Manuel Sáenz
We study the origin of quantum probabilities as arising from non-boolean propositional-operational structures. We apply the method developed by Cox to non distributive lattices and…
Quantum discord and related measures of quantum correlations in XY chains
N. Canosa, L. Ciliberti, R. Rossignoli
We examine the quantum correlations of spin pairs in the ground state of finite XY chains in a transverse field, by evaluating the quantum discord as well as other related entropic…
On the connection between Complementarity and Uncertainty Principles in the Mach-Zehnder interferometric setting
G. M. Bosyk, M. Portesi, F. Holik +1
We revisit, in the framework of Mach-Zehnder interferometry, the connection between the complementarity and uncertainty principles of quantum mechanics. Specifically, we show that,…
Measurements, quantum discord and parity in spin 1 systems
R. Rossignoli, J. M. Matera, N. Canosa
We consider the evaluation of the quantum discord and other related measures of quantum correlations in a system formed by a spin 1 and a complementary spin system. A characterizat…
Generalizing entanglement via informational invariance for arbitrary statistical theories
F. Holik, C. Massri, A. Plastino
Given an arbitrary statistical theory, different from quantum mechanics, how to decide which are the nonclassical correlations? We present a formal framework which allows for a def…