Two-mode Open Quantum Systems: Decoherence and Localized Bound State Dynamics

TL;DR

This paper investigates the conditions for dissipationless localized bound states in a two-mode open quantum system, analyzing their decoherence dynamics and potential for robust quantum technology applications.

Contribution

It analytically derives conditions for dissipationless bound states and explores their decoherence resistance in a two-mode open quantum system.

Findings

Conditions for dissipationless localized bound states are analytically determined.

Decoherence resistance of localized bound states is demonstrated.

Potential for dissipationless quantum operations is highlighted.

Abstract

Dissipationless localized bound states of open quantum systems are significantly robust to decoherence and have potential applications in quantum technologies. In this work, the decoherence dynamics and dissipationless localized bound states of a two-mode open quantum system are investigated. The conditions for the emergence of dissipationless localized bound states are analytically solved, and the corresponding critical system-environment couplings under different values of the inter-mode coupling and the detuning are determined. The decoherence dynamics of the system under such conditions are analyzed and dissipationless coherence between the different localized bound states against decoherence is clearly shown. This may provide a new avenue to develop dissipationless quantum technology for quantum operations.