Nonlocality of Two-Mode Squeezing with Internal Noise

Abstract

We examine the quantum states produced through parametric amplification with internal quantum noise. The internal diffusion arises by coupling both modes of light to a reservoir for the duration of the interaction time. The Wigner function for the diffused two-mode squeezed state is calculated. The nonlocality, separability, and purity of these quantum states of light are discussed. In addition, we conclude by studying the nonlocality of two other continuous variable states: the Werner state and the phase-diffused state for two light modes.

7 pages, 5 figures, submitted to PRA

References in corpus (6)

• Peres-Horodecki separability criterion for continuous variable systems
• Nonlocality of Einstein-Podolsky-Rosen State in Wigner Representation
• Quantum Nonlocality in Phase Space
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• Evolution of two-mode quantum states under a dissipative environment: which quantum resource survives better, squeezing or entanglement?
• Minkowski structure for purity and entanglement of Gaussian bipartite states