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arXiv 2402.04815quant-ph
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耗散里德伯气体集体量子跳跃统计的微波控制

Microwave control of collective quantum jump statistics of a dissipative Rydberg gas

Zong-Kai Liu, Kong-Hao Sun, Albert Cabot, Federico Carollo, Jun Zhang, Zheng-Yuan Zhang, Li-Hua Zhang, Bang Liu, Tian-Yu Han, Qing Li, Yu Ma, Han-Chao Chen, Igo… 展开作者

Zong-Kai Liu, Kong-Hao Sun, Albert Cabot, Federico Carollo, Jun Zhang, Zheng-Yuan Zhang, Li-Hua Zhang, Bang Liu, Tian-Yu Han, Qing Li, Yu Ma, Han-Chao Chen, Igor Lesanovsky, Dong-Sheng Ding, Bao-Sen Shi

AI总结:

研究激光驱动的耗散里德伯气体在双稳态区域的集体跳跃统计,通过双音微波场控制跳跃时间分布,产生次谐波峰值,无需精细调节或超冷温度,可用于量子传感与计量。

摘要:

接近相变的量子多体系统对外部施加的扰动表现出集体响应。我们在一个调谐至双稳态区域的激光驱动耗散里德伯气体中探索了这一现象。在此区域,两种亚稳态相共存,分别具有低和高密度的里德伯原子。我们原位监测由此产生的集体动力学,其特征是这两个宏观上截然不同的多体相之间的随机集体跳跃。我们展示了这些跳跃的统计特性可以通过双音微波场进行控制。特别地,我们发现跳跃时间的分布出现了与相对微波失谐的次谐波相对应的峰值。我们的研究证明,无需精细调节或超冷温度,即可控制耗散量子多体系统的集体统计特性。这种稳健的现象可能在量子传感和计量学中找到技术应用。

英文摘要:

Quantum many-body systems near phase transitions respond collectively to externally applied perturbations. We explore this phenomenon in a laser-driven dissipative Rydberg gas that is tuned to a bistable regime. Here two metastable phases coexist, which feature a low and high density of Rydberg atoms, respectively. The ensuing collective dynamics, which we monitor in situ, is characterized by stochastic collective jumps between these two macroscopically distinct many-body phases. We show that the statistics of these jumps can be controlled using a dual-tone microwave field. In particular, we find that the distribution of jump times develops peaks corresponding to subharmonics of the relative microwave detuning. Our study demonstrates the control of collective statistical properties of dissipative quantum many-body systems without the necessity of fine-tuning or of ultra cold temperatures. Such robust phenomena may find technological applications in quantum sensing and metrology.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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