Nonclassicality and sub-Planck structures of photon subtracted compass states

TL;DR

This paper investigates the nonclassical features and sub-Planck structures of photon-subtracted compass states, revealing their quantum properties and robustness in phase space sensitivity.

Contribution

It introduces an analysis of nonclassical properties and sub-Planck structures in photon-subtracted compass states, highlighting their potential quantum advantages.

Findings

Photon subtraction enhances nonclassicality indicators.

Sub-Planck structures are present in the Wigner functions of PSCS.

Photon subtraction does not reduce phase space sensitivity.

Abstract

We discuss the nonclassical properties of photon-subtracted compass states (PSCS). Nonclassical behavior is studied using various parameters like the Wigner function, squeezing, and photon statistical parameters like Mandels Q-function, second-order correlation function, Agarwal Tara $A_3$ criterion, and photon number distribution. Further analysis is being done to investigate the subPlanck structures in the Wigner functions of these PSCS. We also show that the photon subtraction does not cause the loss of sensitivity due to the displacement of the states in phase space.