4 papers
Controllable Non-Hermitianity in Continuous-Variable Qubits
Ke-Xiong Yan, Zhi-Cheng Shi, Ye-Hong Chen +1
Pure dephasing is the dominant leak mechanism in photonic cat qubits because its phase errors disrupt the parity protection, rendering the qubit vulnerable to energy relaxation. In…
Giant-Atom Quantum Batteries
Ke-Xiong Yan, Yang Liu, Yang Xiao +5
Environmentally induced decoherence poses a fundamental challenge to quantum energy storage systems, causing irreversible energy dissipation and performance aging of quantum batter…
Suppressed Energy Relaxation in the Quantum Rabi Model at the Critical Point
Ye-Hong Chen, Zhi-Cheng Shi, Yu-Ran Zhang +2
We derive a modified master equation for the quantum Rabi model in the parameter regime where quantum criticality can occur. The modified master equation can avoid some unphysical…
Spontaneous emission in Casimir-Rabi oscillations through a weak optomechanical coupling
Ke-Xiong Yan, Yuan Qiu, Yang Xiao +3
The dynamical Casimir effect (DCE) describes the energy conversion from a mechanical motion to the electromagnetic fields. When the mechanical oscillator is in a mechanically excit…