Decoherence and quantum steering of accelerated qubit-qutrit system

TL;DR

This paper investigates how acceleration affects quantum correlations and steerability in a qubit-qutrit system, revealing that acceleration influences decoherence and the ability of subsystems to steer each other.

Contribution

It provides new insights into the effects of acceleration on quantum steering and decoherence in mixed-dimensional systems, highlighting the asymmetry and initial state dependence.

Findings

Decoherence increases with mixing parameter for the system and qutrit, decreases for the qubit.

Non-classical correlations increase with higher acceleration.

Steerability decays differently depending on which subsystem is accelerated.

Abstract

The bidirectional steerability between different-size subsystems is discussed for a single parameter accelerated qubit-qutrit system. The decoherence due to the mixing and acceleration parameters is investigated, where for the total system and the qutrit, it increases as the mixing parameter increases, while it decreases for the qubit. The non-classical correlations are quantified by using the local quantum uncertainty, where it increases at large values of the acceleration parameter. The possibility that each subsystem steers each other is studied, where the behavior of the steering inequality predicts that the qubit has a large ability to steer the qutrit. The degree of steerability decays gradually when the qubit is accelerated. However, it decays suddenly when the qutrit or both subsystems are accelerated. The degree of steerability is shown for the qutrit/qubit vanishes at small/large values of the acceleration. The difference between the degrees of steerability depends on the initial state settings and the size of the accelerated subsystem.