583 citations
- University of PalermoIT56 papers
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8 papers · 2 filters
Hidden entanglement in the presence of random telegraph dephasing noise
A. D'Arrigo, R. Lo Franco, G. Benenti +2
Entanglement dynamics of two noninteracting qubits, locally affected by random telegraph noise at pure dephasing, exhibits revivals. These revivals are not due to the action of any…
Discording power of quantum evolutions
F. Galve, F. Plastina, M. G. A. Paris +1
We introduce the discording power of a unitary transformation, which assesses its capability to produce quantum discord, and analyze in detail the generation of discord by relevant…
Harmonic oscillator model for the atom-surface Casimir-Polder interaction energy
Roberto Passante, Lucia Rizzuto, Salvatore Spagnolo +2
In this paper we consider a quantum harmonic oscillator interacting with the electromagnetic radiation field in the presence of a boundary condition preserving the continuous spect…
Casimir-Polder forces, boundary conditions and fluctuations
Riccardo Messina, Roberto Passante, Lucia Rizzuto +2
We review different aspects of the atom-atom and atom-wall Casimir-Polder forces. We first discuss the role of a boundary condition on the interatomic Casimir-Polder potential betw…
Qubit-assisted thermometry of a quantum harmonic oscillator
Matteo Brunelli, Stefano Olivares, Mauro Paternostro +1
We use the theory of quantum estimation in two different qubit-boson coupling models to demonstrate that the temperature of a quantum harmonic oscillator can be estimated with high…
Scaling behavior for a class of quantum phase transitions
Wen-ge Wang, Pinquan Qin, Qian Wang +2
We show that for quantum phase transitions with a single bosonic zero mode at the critical point, like the Dicke model and the Lipkin-Meshkov-Glick model, metric quantities such as…