3 papers
quant-ph2024
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…
quant-ph2023
Asymmetry-enhanced phase sensing via asymmetric entangled coherent states
Xiao-Tong Chen, Wang-Jun Lu, Yunlan Zuo +3
We study quantum phase sensing with an asymmetric two-mode entangled coherent state (ECS) in which the two local amplitudes have different values. We find the phenomenon of the asy…
quant-ph2022
Instantaneous indirect measurement principle in quantum mechanics
Wangjun Lu, Xingyu Zhang, Lei Shao +6
In quantum systems, the measurement of operators and the measurement of the quantum states of the system are very challenging tasks. In this Letter, we propose a method to obtain t…