Weak Measurement effects on dynamics of quantum correlations in a Two-atom System in Thermal Reservoirs

TL;DR

This paper investigates how weak measurements influence quantum correlations, specifically Measurement-Induced Nonlocality (MIN), in a two-atom system interacting with thermal reservoirs, revealing that MIN is more robust than entanglement under noise.

Contribution

It introduces the analysis of weak measurement effects on quantum correlations, highlighting the robustness of MIN compared to entanglement in thermal environments.

Findings

MIN is more robust than entanglement under noise.

Weak measurement strength affects quantum correlations.

Mean photon number influences quantum correlation dynamics.

Abstract

The dynamical behavior of quantum correlations captured by different forms Measurement-Induced Nonlocality (MIN) between two atoms coupled with thermal reservoirs is investigated and compared with the entanglement. It is shown that the MIN quantities are more robust, while noise causes sudden death in entanglement. Further, we quantified the quantum correlation with weak measurement, and the effect of measurement strength is observed. The role of mean photon number and weak measurement on quantum correlation is also highlighted.