4 papers · 1 filter
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…
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…
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…