Simultaneous polarization squeezing in polarized N photon state and diminution on a squeezing operation

TL;DR

This paper investigates polarization squeezing in pure photon number states, revealing that basis changes induce simultaneous squeezing in all Stokes components except specific directions, and examines how squeezing operations affect this phenomenon.

Contribution

It introduces a general framework for polarization squeezing in photon number states and analyzes the effects of squeezing operations on this property.

Findings

Basis changes induce simultaneous polarization squeezing in all Stokes components except certain directions.

Non-degenerate parametric amplification reduces or diminishes the observed squeezing.

The study discusses the experimental feasibility of observing such squeezing phenomena.

Abstract

We study polarization squeezing of a pure photon number state which is obviously polarized but the mere change in the basis of polarization leads to simultaneous polarization squeezing in all the components of Stokes operator vector except those falling along or perpendicular to the direction of polarization state, is observed. We use the most general definition of polarization squeezing and discuss the experimental feasibility of the result. We also observe that a squeezing operation like non-degenerate parametric amplification of the state does not reveal simultaneous squeezing in all Stokes operator vectors and decreases in this sense.