Time-domain Landau-Zener-Stuckelberg-Majorana interference in an optical lattice clock
Time-domain Landau-Zener-Stuckelberg-Majorana interference in an optical lattice clock
复制标题
光学晶格钟中的时域朗道-齐纳-斯塔克伯格-马约拉纳干涉
DOI：
10.1103/physreva.104.053318
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发表时间：
2021
影响因子：
2.9
通讯作者：
Li Wei-Dong
中科院分区：
文献类型：
--
作者：
Liu Wei-Xin;Wang Tao;Zhang Xue-Feng;Li Wei-Dong
一系列朗道-齐纳（LZ）跃迁之间的干涉可以产生拉比振荡（LZRO）。这种现象是一种时域Landau-Zener-Stückelberg-Majorana（LZSM）干涉。然而，这种LZSM干涉诱导拉比振荡的实验演示是非常困难的，由于短的相干时间的驱动量子系统。本文从理论上研究了一维光晶格钟（OLC）系统中钟跃迁之间的时域LZSM干涉。利用绝热脉冲模型和Floquet数值模拟方法，在真实的实验参数范围内，在快通极限和慢通极限都能清晰地发现具有特殊台阶结构的LZRO。此外，在慢通极限下，通过相消干涉可以抑制由系统温度引起的失相效应。最后，我们讨论了脉冲时间远离半整数周期和整数周期时可能出现的布洛赫-西格特位移。我们的工作为在OLC平台上观察LZRO提供了一个清晰的路线图。
The interference between a sequence of Landau-Zener (LZ) transitions can produce Rabi oscillations (LZROs). This phenomenon is a kind of time-domain Landau-Zener-Stückelberg-Majorana (LZSM) interference. However, experimental demonstrations of this LZSM interference induced Rabi oscillation are extremely hard due to the short coherence time of the driven quantum system. Here, we study theoretically the time-domain LZSM interference between the clock transition in a one-dimensionaloptical lattice clock (OLC) system. With the help of both the adiabatic-impulse model and Floquet numerical simulation method, the LZROs with special steplike structure are clearly found both in the fast- and slow-passage limit in the real experiment parameter regions. In addition, the dephasing effect caused by the system temperature can be suppressed with destructive interference in the slow-passage limit. Finally, we discuss the possible Bloch-Siegert shift while the pulse time is away from the half-integer and integer periods. Our work provides a clear road map to observe the LZROs on the OLC platform.