Excitations of photon-number states in Kerr nonlinear resonator at finite temperatures

TL;DR

This paper explores how finite temperature reservoirs influence photon-number states in a Kerr nonlinear resonator, analyzing quantum statistics and pulse-shaping effects to improve Fock state generation in realistic conditions.

Contribution

It introduces a detailed analysis of thermal reservoir effects on photon states in Kerr resonators, including pulse-shaping strategies for selective excitation.

Findings

Thermal reservoirs significantly affect photon-number state populations.

Pulse shaping enhances selective excitation of photon states.

Quantum correlations depend on temperature and pulse parameters.

Abstract

We investigate temperature reservoir effects in a lossy Kerr nonlinear resonator considering selective excitation of ooscillatory mode driven by a sequence of Gaussian pulses. In this way, we analyze time-dependent populations of photon-number states and quantum statistics on the base of second-order photon correlation function in one-photon and two-photon transitions. The effects coming from thermal reservoirs are interesting for performing more realistic approach to generate Fock states and for study phenomena connecting quantum engineering and temperature. We also study the role of pulse-shaping effects during selective excitation.