Direct generation of spatial quadripartite continuous variable entanglement in an optical parametric oscillator

2016 ◽  
Vol 41 (22) ◽  
pp. 5178 ◽  
Author(s):  
Kui Liu ◽  
Jun Guo ◽  
Chunxiao Cai ◽  
Junxiang Zhang ◽  
Jiangrui Gao
Keyword(s):  
Optical Parametric Oscillator ◽  
Continuous Variable ◽  
Parametric Oscillator ◽  
Optical Parametric ◽  
Direct Generation

scholarly journals Continuous variable entanglement of counter-propagating twin beams

2017 ◽  
Vol 15 (08) ◽  
pp. 1740017 ◽  
Author(s):  
A. Gatti ◽  
E. Brambilla
Keyword(s):  
Phase Angle ◽  
Optical Parametric Oscillator ◽  
Correlation Time ◽  
Photon Number ◽  
Continuous Variable ◽  
Parametric Oscillator ◽  
Single Pass ◽  
Optical Parametric ◽  
First Case

This work describes the continuous variable entanglement of the counter-propagating twin beams generated in a Mirrorless Optical Parametric Oscillator (MOPO) below threshold, encompassing both their quadrature and photon-number correlation. In the first case, a comparison with the single-pass co-propagating geometry outlines a completely different stability of the two sources with respect to the phase-angle. In the second case, stimulated by the critical divergence of the correlation time evidenced by Corti et al., we address the issue of the temporal bandwidth of the intensity squeezing.

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