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5 papers · 2 filters
Polarization monotones of two-dimensional and three-dimensional random electromagnetic fields
G. M. Bosyk, G. Bellomo, A. Luis
We propose a formal resource-theoretic approach to quantify the degree of polarization of two and three-dimensional random electromagnetic fields. This endows the space of spectral…
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…
Bipartite entanglement in fermion systems
N. Gigena, R. Rossignoli
We discuss the relation between fermion entanglement and bipartite entanglement. We first show that an exact correspondence between them arises when the states are constrained to h…
An estimation of the logarithmic timescale in an ergodic dynamics
Ignacio S. Gomez
An estimation of the logarithmic timescale in quantum systems having an ergodic dynamics in the semiclassical limit of quasiclassical large parameters, is presented. The estimation…
Lyapunov exponents and Hamiltonian poles in a non Hermitian dynamics
Ignacio S. Gomez
By means of expressing volumes in phase space in terms of traces of quantum operators, a relationship between the Hamiltonian poles and the Lyapunov exponents in a non Hermitian qu…