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8 papers · 2 filters
Mutual information as an order parameter for quantum synchronization
V. Ameri, M. Eghbali-Arani, A. Mari +4
Spontaneous synchronization is a fundamental phenomenon, important in many theoretical studies and applications. Recently this effect has been analyzed and observed in a number of…
Hamiltonian Purification
Davide Orsucci, Daniel Burgarth, Paolo Facchi +4
The problem of Hamiltonian purification introduced by Burgarth et al. [D. K. Burgarth et al., Nat. Commun. 5, 5173 (2014)] is formalized and discussed. Specifically, given a set of…
Entanglement-Breaking Indices
Ludovico Lami, Vittorio Giovannetti
We study a set of new functionals (called entanglement--breaking indices) which characterize how many local iterations of a given (local) quantum channel are needed in order to com…
Quantum optomechanical piston engines powered by heat
Andrea Mari, Alessandro Farace, Vittorio Giovannetti
We study two different models of optomechanical systems where a temperature gradient between two radiation baths is exploited for inducing self-sustained coherent oscillations of a…
Majorization and additivity for multimode bosonic Gaussian channels
V. Giovannetti, A. S. Holevo, A. Mari
Recently, the longstanding Gaussian optimizer conjecture was proven for bosonic Gaussian gauge-covariant or contravariant channels in the work of Giovannetti, Holevo and Garcia-Pat…
Geometric quantum pumping in the presence of dissipation
Juzar Thingna, Peter Hänggi, Rosario Fazio +1
The charge transported when a quantum pump is adiabatically driven by time-dependent external forces in presence of dissipation is given by the line integral of a pumping field $\m…