Nonclassicalities of hybrid coherent states

TL;DR

This paper investigates the nonclassical properties of hybrid coherent states, demonstrating they can exhibit stronger nonclassical features than related states, and proposes a scheme for their generation using Kerr nonlinearity.

Contribution

It introduces a detailed analysis of nonclassicalities in hybrid coherent states and proposes a new generation method involving Kerr nonlinearity and postselection.

Findings

HCS can show greater nonclassicality than SPAC states

HCS exhibit significant negativity in the Wigner function

A feasible generation scheme for HCS is proposed

Abstract

We address nonclassicality of hybrid coherent states (HCS), i.e. states expressed as superpositions of coherent states and single-photon-added coherent (SPAC) state. In particular, we evaluate their photon statistics, squeezing, and negativity of the Wigner function. Our results indicated that HCS may exhibit larger nonclassicalities than SPAC state. We also suggest a generation scheme for HCS which involves Kerr nonlinearity and postselection.