0000000000941036

AUTHOR

Giuseppe Petrillo

showing 2 related works from this author

Quantum coherence of Gaussian states

2016

We introduce a geometric quantification of quantum coherence in single-mode Gaussian states and we investigate the behavior of distance measures as functions of different physical parameters. In the case of squeezed thermal states, we observe that re-quantization yields an effect of noise-enhanced quantum coherence for increasing thermal photon number.

Condensed Matter - Other Condensed MatterQuantum PhysicsFOS: Physical sciencesMathematical Physics (math-ph)Quantum Physics (quant-ph)Mathematical PhysicsOther Condensed Matter (cond-mat.other)
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Asymptotic non-Markovianity

2016

We investigate the asymptotic dynamics of exact quantum Brownian motion. We find that non-Markovianity can persist in the long-time limit, and that in general the asymptotic behaviour depends strongly on the system-environment coupling and the spectral density of the bath.

Condensed Matter - Other Condensed MatterQuantum PhysicsFOS: Physical sciencesMathematical Physics (math-ph)Quantum Physics (quant-ph)Mathematical PhysicsOther Condensed Matter (cond-mat.other)
researchProduct