论文标题
Landau-Zener的转变和绝热冲动近似在两个rydberg原子的阵列中，与时间有关
Landau-Zener transitions and Adiabatic impulse approximation in an array of two Rydberg atoms with time-dependent detuning
论文作者
论文摘要
我们使用确切的数值计算以及绝热脉冲近似（AIA）的方法，研究了两个Rydberg原子的Landau-Zener（LZ）动力学。通过改变Rydberg-Rydberg的相互作用强度，该系统可以模拟不同的三级LZ模型，例如Bow-Tie和三角形LZ模型。 LZ动力学表现出对初始状态，淬火速率和相互作用强度的非平凡依赖性。为了获得较大的相互作用强度，动力学被AIA很好地捕获。最后，我们分析了定期驱动的情况，AIA揭示了与动力学有关的丰富相结构。后者可以在量子状态制备，量子相门和原子干涉法中找到应用。
We study the Landau-Zener (LZ) dynamics in a setup of two Rydberg atoms with time-dependent detuning, both linear and periodic, using both the exact numerical calculations as well as the method of adiabatic impulse approximation (AIA). By varying the Rydberg-Rydberg interaction strengths, the system can emulate different three-level LZ models, for instance, bow-tie and triangular LZ models. The LZ dynamics exhibits non-trivial dependence on the initial state, the quench rate, and the interaction strengths. For large interaction strengths, the dynamics is well captured by AIA. In the end, we analyze the periodically driven case, and AIA reveals a rich phase structure involved in the dynamics. The latter may find applications in quantum state preparation, quantum phase gates, and atom interferometry.
