Investigating the Impact of Qubit Velocity on Quantum Synchronization Dynamics

TL;DR

This paper explores how the velocity of a qubit influences its quantum synchronization behavior within a dissipative environment, revealing that strong coupling and specific detuning promote phase locking and coherence.

Contribution

It introduces a detailed analysis of qubit motion effects on quantum synchronization, highlighting the role of velocity and detuning in phase locking phenomena.

Findings

Strong coupling enhances phase locking and synchronization.

Qubit velocity significantly affects decoherence and phase stability.

System detuning can be used to control synchronization behavior.

Abstract

We investigate the quantum synchronization dynamics of a moving qubit interacting with a dissipative cavity environment, using the Husimi $Q$-function to analyze its phase space evolution. Unlike conventional synchronization between separate subsystems, we focus on self-synchronization phenomena, where the qubit's phase dynamics exhibit locking to its initial phase distribution. We explore the effects of varying qubit velocity and system detuning across weak and strong coupling regimes. In the weak coupling regime, the system rapidly decoheres with minimal phase preference. In contrast, strong coupling leads to the emergence and persistence of a distinct phase peak, indicating phase locking and enhanced synchronization. These results offer insight into how motion and detuning can regulate coherence and phase stability in open quantum systems. Our approach aligns with recent studies that generalize synchronization concepts to single quantum systems.