Laser & Optoelectronics Progress, Volume. 58, Issue 21, 2127001(2021)
Evolution Characteristics of Three-Qubit Quantum Entanglement Under External Field Effect
The coherent state orthogonalization expansion method is used to analyze and investigate the factors influencing the three-qubit entanglement degree. In addition, the three-qubit entanglement in the interaction process with the vacuum state as the initial state of the light field is investigated by numerical calculation combined with analytical solution. The relationship between the entanglement degree of three identical qubits and the light field frequency as well as the influence of light-field-qubit coupling strength on the three-qubit entanglement degree is analyzed. The research results show that the evolutions of the three-qubit intrinsic energy and the three-qubit co-occurrence entanglement degree with light field frequency and time
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Weidong Luo, Xuan Zhou, Xiaoqing Zhou, Yunwen Wu, Shangjiang Huang. Evolution Characteristics of Three-Qubit Quantum Entanglement Under External Field Effect[J]. Laser & Optoelectronics Progress, 2021, 58(21): 2127001
Category: Quantum Optics
Received: Dec. 10, 2020
Accepted: Mar. 8, 2021
Published Online: Nov. 17, 2021
The Author Email: Zhou Xiaoqing (zhouxq_jd@163.com), Wu Yunwen (wuyw_jd@163.com)