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arXiv 2404.08482cond-mat.quant-gasquant-ph
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Floquet驱动的从密度辅助隧穿到增强对隧穿的交叉

Floquet-driven crossover from density-assisted tunneling to enhanced pair tunneling

Nick Klemmer, Janek Fleper, Valentin Jonas, Ameneh Sheikhan, Corinna Kollath, Michael Köhl, Andrea Bergschneider

AI总结:

本文通过Floquet工程调控双阱势中的有效相互作用,实现从密度辅助隧穿到主导对隧穿的交叉,并增强对隧穿速率,为超冷原子系统中显式对隧穿模型的实现提供了新途径。

摘要:

我们研究了利用Floquet工程在双阱势中对对隧穿的实验控制。通过调节有效相互作用,我们展示了从密度辅助隧穿区域到主导对隧穿区域的交叉。此外,我们表明,对隧穿速率不仅可以相对于Floquet减少的单粒子隧穿得到增强,甚至可以超过静态超交换速率,同时保持有效相互作用在相关范围内。这为在超冷原子系统中实现具有显式对隧穿的模型开辟了可能性。

英文摘要:

We investigate the experimental control of pair tunneling in a double-well potential using Floquet engineering. We demonstrate a crossover from a regime with density-assisted tunneling to dominant pair tunneling by tuning the effective interactions. Furthermore, we show that the pair tunneling rate can be enhanced not only compared to the Floquet-reduced single-particle tunneling but even beyond the static superexchange rate, while keeping the effective interaction in a relevant range. This opens possibilities to realize models with explicit pair tunneling in ultracold atomic systems.

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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