Title
Quantum correlations in Gaussian states via Gaussian channels: steering, entanglement, and discord.
Abstract
Here we study the quantum steering, quantum entanglement, and quantum discord for Gaussian Einstein---Podolsky---Rosen states via Gaussian channels. And the sudden death phenomena for Gaussian steering and Gaussian entanglement are theoretically observed. We find that some Gaussian states have only one-way steering, which confirms the asymmetry of quantum steering. Also we investigate that the entangled Gaussian states without Gaussian steering and correlated Gaussian states own no Gaussian entanglement. Meanwhile, our results support the assumption that quantum entanglement is intermediate between quantum discord and quantum steering. Furthermore, we give experimental recipes for preparing quantum states with desired types of quantum correlations.
Year
DOI
Venue
2016
10.1007/s11128-016-1276-1
Quantum Information Processing
Keywords
Field
DocType
Gaussian state,Gaussian channel,Quantum steering,Quantum entanglement,Quantum discord
Quantum electrodynamics,Gaussian random field,Quantum entanglement,Quantum mechanics,Quantum algorithm,Quantum discord,Quantum channel,Quantum capacity,Quantum error correction,Amplitude damping channel,Physics
Journal
Volume
Issue
ISSN
15
6
1570-0755
Citations 
PageRank 
References 
1
0.41
0
Authors
5
Name
Order
Citations
PageRank
Zhongxiao Wang110.41
Shuhao Wang2202.54
Qiting Li320.78
tiejun wang4333.48
Chuan Wang5286.79