Abstract
Squeezed and entangled two-mode light can be generated by the combination of degenerate and nondegenerate parametric oscillators. The correlated signal-idler modes are not only enhance the degree of quadrature squeezing and entanglement properties of the two-mode light but they are also the cause of these properties. But the effect of signal-signal modes are to enhance the degree of quadrature squeezing and to reduce the entanglement property of the two-mode light. Keywords: signal-signal modes, signal-idler modes, quadrature squeezing, entanglement DOI : 10.7176/APTA/78-02 Publication date :June 30 th 2019
Highlights
The interaction of radiation with a nonlinear crystal leads to the production of a radiation with nonclassical features such as quadrature squeezing and entangled two-mode light
We see from Eq (44) that nondegenerate parametric oscillator produces light in squeezed state and the squeezing occurs in the minus quadrature
In this work, we have considered the cavity modes produced by combination of non-degenerate and two degenerate parametric process
Summary
The interaction of radiation with a nonlinear crystal leads to the production of a radiation with nonclassical features such as quadrature squeezing and entangled two-mode light. It has been predicted that a parametric oscillator produces light with quadrature squeezing [5], [6] and entangled modes [7], [8] that is due to the quantum correlation between the two modes. It is desirable to generate strongly entangled continuous-variable state. Schemes for generating continuous-variable entanglement have been proposed and realized in nondegenerate parametric amplifiers [14], [19]. We wish to investigate the squeezing and entanglement properties of a two-mode light produced by the system under consideration, employing the steady state solutions of the cavity mode operators and the correlation properties of the noise operators
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