117 citations · 207 across the 8 of their papers we have counts for
6 papers · 1 filter
Multiple copy distillation and purification of phase diffused squeezed states
Petr Marek, Jaromir Fiurasek, Boris Hage +3
We provide a detailed theoretical analysis of multiple copy purification and distillation protocols for phase diffused squeezed states of light. The standard iterative distillation…
On the distillation and purification of phase-diffused squeezed states
B. Hage, A. Franzen, J. DiGuglielmo +3
Recently it was discovered that non-Gaussian decoherence processes, such as phase-diffusion, can be counteracted by purification and distillation protocols that are solely built on…
Probabilistic purification of noisy coherent states
Petr Marek, Radim Filip
A basic feasible probabilistic purification of unknown noisy coherent states, outgoing from different state preparations with unknown mean number of thermal photons, is proposed. T…
Nonclassicality in phase space and nonclassical correlation
Petr Marek, M. S. Kim, Jinhyoung Lee
Continuous variable entanglement is a manifestation of nonclassicality of quantum states. In this paper we attempt to analyze whether and under which conditions nonclassicality can…
Vacuum as a less hostile environment to entanglement
Petr Marek, Jinhyoung Lee, M. S. Kim
We derive sufficient conditions for infinite-dimensional systems whose entanglement is not completely lost in a finite time during its decoherence by a passive interaction with loc…
Quantum Filtering of Optical Coherent States
C. Wittmann, D. Elser, U. L. Andersen +3
We propose and experimentally demonstrate non-destructive and noiseless removal (filtering) of vacuum states from an arbitrary set of coherent states of continuous variable systems…