Threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems
Er, C.H. Chung, N.N. Chew, L.Y.
Er, C.H.
Chew, L.Y.
An error occurred retrieving the object's statistics
Citations
Altmetric:
Alternative Title
Abstract
We investigate the dynamical enhancement of entanglement by means of local squeezing of initial separable Gaussian states in two coupled harmonic oscillator systems. Interestingly, the maximum generation of entanglement between the two modes is not a monotonically increasing function of the squeezing parameter. Instead, there exists a critical degree of squeezing r c for the maximum entanglement to be enhanced. For the coupled oscillator systems considered, we have derived the analytical expressions of rc. © 2013 The Royal Swedish Academy of Sciences.
Keywords
Source Title
Physica Scripta
Publisher
Series/Report No.
Collections
Rights
Date
2013-02
DOI
10.1088/0031-8949/87/02/025001
Type
Article