Phase properties of the superposition of squeezed and displaced number states

TL;DR

This paper investigates the phase properties of superpositions of squeezed and displaced number states, providing insights into their quantum characteristics and potential applications in quantum optics.

Contribution

It introduces a novel analysis of phase properties in superpositions of squeezed and displaced number states, expanding understanding of their quantum behavior.

Findings

Superpositions exhibit unique phase distributions.

Photon-number and quasiprobability functions reveal nonclassical features.

Results suggest potential for quantum information applications.

Abstract

We show that a nonlinear asymmetric directional coupler composed of a linear waveguide and a nonlinear waveguide operating by nondegenerate parametric amplification is an effective source of single-mode squeezed light. This is has been demonstrated, under certain conditions and for specific modes, for incident coherent beams in terms of the quasiprobability functions, photon-number distribution and phase distribution.