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Continuous variable quantum key distribution in non-Markovian channels
non-Markovian variable quantum
2010/11/8
We address continuous variable quantum key distribution (QKD) in non-Markovian lossy channels and show how the non-Markovian features may be exploited to enhance security and/or to detect the presence...
Would one rather store squeezing or entanglement in continuous variable quantum memories?
rather store squeezing entanglement continuous variable
2010/11/5
Given two quantum memories for continuous variables (e.g., the collective pseudo-spin of two atomic ensembles) and the possibility to perform passive optical operations (typically beam-splitters) on t...
Early Stage Disentanglement in Bipartite Continuous-Variable Systems
Early Stage Disentanglement Bipartite Continuous-Variable Systems
2010/10/20
Entanglement may vanish even for a limited amount of loss imposed on the quantum state, a
phenomenon known as entanglement sudden death in discrete systems, or, as proposed, early stage
disentanglem...
Analysis of a continuous-variable quadripartite cluster state from a single optical parametric oscillator
continuous-variable quadripartite cluster state single optical parametric oscillator
2010/10/20
We examine the feasibility of generating continuous-variable multipartite entanglement in an
intra-cavity quadruply concurrent downconversion scheme that has been proposed for the generation of clust...
Unveiling quantum Hall transport by Efros-Shklovskii to Mott variable range hopping transition with Graphene
Mott variable range transition
2010/10/26
The quantum localization in the quantum Hall regime is revisited using Graphene monolayers
with accurate measurements of the longitudinal resistivity as a function of temperature and current.We exper...
Entanglement evolution of continuous variable quantum states
Entanglement evolution continuous variable quantum states
2010/3/10
We show when one of the modes of a initially bipartite Gaussian pure state interacts with a Gaussian noisy channel $\uppercase\expandafter{\romannumeral1}\otimes \$$, the evolution of entanglement can...
Continuous Variable Entanglement and Squeezing of Orbital Angular Momentum States
Continuous Variable Entanglement and Squeezing Orbital Angular Momentum States
2010/4/8
We report the first experimental characterization of the first-order continuous variable orbital angular momentum states. Using a spatially non-degenerate optical parametric oscillator (OPO) we produc...
Efficient reconciliation protocol for discrete-variable quantum key distribution
Efficient reconciliation protocol discrete-variable quantum key distribution
2010/4/13
Reconciliation is an essential part of any secret-key agreement protocol and hence of a Quantum Key Distribution (QKD) protocol, where two legitimate parties are given correlated data and want to agre...
Two-Variable Hermite Function as Quantum Entanglement of Harmonic
Oscillator's Wave Functions
two-variable Hermite function quantum entanglement
Bargmann representation Schmidt decomposition
2007/8/15
2007Vol.47No.6pp.1024-1028DOI:
Two-Variable Hermite Function as Quantum Entanglement of Harmonic
Oscillator's Wave Functions
LU Hai-Liang and FAN Hong-Yi
Department of P...
Quantum Encryption Protocol Based on Continuous Variable EPR Correlations
quantum cryptography quantum encryption EPR correlations NOPA
2007/8/15
2006Vol.46No.1pp.61-64DOI:
Quantum Encryption Protocol Based on Continuous Variable EPR Correlations
HE Guang-Qiang and ZENG Gui-Hua
The State Key Laboratory of Fibre-Op...