驻波场中囚禁离子的Wigner-Yanase偏态信息
发布时间：2018-08-26 17:41
【摘要】：研究了驻波场中囚禁离子的Wigner-Yanase偏态信息并得到了其恢复周期,发现此周期与离子布居数反转的恢复时间相同。对解析解与数值模拟进行分析,发现Wigner-Yanase偏态信息的恢复时间随Lamb-Dicke参数的增大而减小,随离子平均振动声子数的增大而增大;当离子质心从驻波场波节移向波腹时,Wigner-Yanase偏态信息的恢复时间变长。从理论上证明了囚禁离子振动态处于相干态时离子初始偏态信息恒为1/2,分析了离子与驻波激光场之间的量子纠缠特性。
[Abstract]:The Wigner-Yanase bias information of trapped ions in standing wave field is studied and the recovery period is obtained. It is found that this period is the same as the recovery time of ion population inversion. The analytical solution and numerical simulation show that the recovery time of Wigner-Yanase skew information decreases with the increase of Lamb-Dicke parameters and increases with the increase of the average number of vibrational phonons. The recovery time of Wigner-Yanase bias information becomes longer when the ion centroid moves from the standing wave field to the wave belly. It is proved theoretically that the initial skewness information of the ion is always 1 / 2 when the trapped ion vibration is in the coherent state. The quantum entanglement between the ion and the standing wave laser field is analyzed.
【作者单位】： 江苏科技大学应用物理系;
【基金】：国家自然科学基金,11205071~~
【分类号】：O431.2
[Abstract]:The Wigner-Yanase bias information of trapped ions in standing wave field is studied and the recovery period is obtained. It is found that this period is the same as the recovery time of ion population inversion. The analytical solution and numerical simulation show that the recovery time of Wigner-Yanase skew information decreases with the increase of Lamb-Dicke parameters and increases with the increase of the average number of vibrational phonons. The recovery time of Wigner-Yanase bias information becomes longer when the ion centroid moves from the standing wave field to the wave belly. It is proved theoretically that the initial skewness information of the ion is always 1 / 2 when the trapped ion vibration is in the coherent state. The quantum entanglement between the ion and the standing wave laser field is analyzed.
【作者单位】： 江苏科技大学应用物理系;
【基金】：国家自然科学基金,11205071~~
【分类号】：O431.2
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