136 citations · 1.7k across the 104 of their papers we have counts for
5 papers · 1 filter
Bounds on mixed state entanglement
Bruno Leggio, Anna Napoli, Hiromichi Nakazato +1
In the general framework of mixed states, we derive an explicit bound for bipartite NPT entanglement based on the mixedness characterization of the physical system. The…
Dynamics of a harmonic oscillator coupled with a Glauber amplifier
R. Grimaudo, V. I. Man'ko, M. A. Man'ko +1
A system of a quantum harmonic oscillator bi-linearly coupled with a Glauber amplifier is analysed considering a time-dependent Hamiltonian model. The Hilbert space of this system…
Proposal of a computational approach for simulating thermal bosonic fields in phase space
Alessandro Sergi, Roberto Grimaudo, Gabriel Hanna +1
When a quantum field is in contact with a thermal bath, the vacuum state of the field may be generalized to a thermal vacuum state, which takes into account the thermal noise. In t…
Bounds on bipartite entanglement from fixed marginals
Giuseppe Baio, Dariusz Chruscinski, Pawel Horodecki +2
We discuss the problem of characterizing upper bounds on entanglement in a bipartite quantum system when only the reduced density matrices (marginals) are known. In particular, sta…
Analytically solvable -symmetry dynamics from su(1,1)-symmetry problems
R. Grimaudo, A. S. M. de Castro, H. Nakazato +1
A protocol for explicitly constructing the exact time-evolution operators generated by time-dependent -symmetry Hamiltonians is reported. Its mathematical applicab…