6 citations · 7 across the 7 of their papers we have counts for
10 papers
Rate and depth of two-axis twisting by pair exchange under the self-Kerr constraint
Qing Yu, Ying Li, Cuilu Zhai +2
In this paper, we study two bosonic modes that exchange pairs of quanta, which realize two-axis twisting exactly: within a sector of fixed particle number the exchange operator is…
Charging Dicke and Tavis--Cummings quantum batteries with a -symmetric lossy--gain cavity pair
Shiqing Tang, Qing Yu, Ying Li +3
We study how a parity--time-symmetric photonic environment changes the charging of Dicke and Tavis--Cummings quantum batteries. For atoms prepared in the collective ground state th…
Optimal initial states for quantum Fisher information in linearized cavity optomechanics
Wangjun Lu, Qing Yu, Ying Li +4
We find the optimal initial states of a linearized cavity-optomechanical system for estimating the single-photon coupling by quantum Fisher information. In the red-detuned (beam-sp…
Stark-induced tunable phase transition in the two-photon Dicke-Stark model
Cui-Lu Zhai, Wei Wu, Chun-Wang Wu +1
We theoretically investigate the superradiant phase transition (SPT) in the two-photon Dicke-Stark model, which incorporates both Rabi and Stark coupling. By introducing a Stark co…
Single-photon triggered quantum entanglement between two qubits or at least 2000 identical qubits
Wangjun Lu, Cuilu Zhai, Hong Tao +3
This paper studies the effect of single-photon light fields on quantum entanglement between two qubits and multiple identical qubits initially in a direct state. For two qubits, we…
Generating Bell states and Werner states of two qubits via optical field
Dengkui Jiang, Cuilu Zhai, Yaju Song +4
In this paper, we investigate how the evolution of the states of two qubits initially in a direct product state can be controlled by the optical field in a Tavis-Cummings (TC) mode…
Optomechanical Schrödinger cat states in a cavity Bose-Einstein condensate
Baijun Li, Wei Qin, Ya-Feng Jiao +4
Schrödinger cat states, consisting of superpositions of macroscopically distinct states, provide key resources for a large number of emerging quantum technologies in quantum inform…
Witnessing entanglement via the geometric phase in a impurity-doped Bose-Einstein condensate
X. Wu, S. P. Jia, C. L. Cai +1
We propose a theoretical scheme to witness quantum entanglement via the geometric phase in an impurity-doped Bose-Einstein condensate (BEC), which is a micro-macro quantum system c…
Reversible optical-microwave quantum conversion assisted by optomechanical dynamically-dark modes
Ling-Ying Zhu, Yong Dong, Ji Zhang +2
We propose a dynamically-dark-mode (DDM) scheme to realize the reversible quantum conversion between microwave and optical photons in an electro-optomechanical (EOM) model. It is s…
Mechanical engineering of photon blockades in a cavity optomechanical system
Cuilu Zhai, Ran Huang, Baijun Li +2
We propose to mechanically control photon blockades (PB) in an optomechanical system with driving oscillators. We show that by tuning the mechanical driving parameters we achieve s…