通过电磁诱导透明冷却快速形成量子气体

IF 17.6 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY
Mingjie Xin, Wui Seng Leong, Zilong Chen, Yu Wang, Shau-Yu Lan
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引用次数: 0

摘要

超冷量子气体在多体物理、量子传感和量子模拟中发挥着举足轻重的作用。随着时间的推移,人们采用了大块集合蒸发冷却和精密激光冷却等方法,有效地实现了原子气体的量子退化。因此,一种更简单、更快速地形成量子气体的方法将为推动该领域的发展带来巨大希望。在这里,我们报告了利用电磁诱导透明和绝热膨胀冷却钉在三维光学晶格中的单个铷原子,从而产生量子气体的过程。仅经过 10 毫秒的冷却,我们就通过将原子绝热转移到光学偶极子陷阱中验证了从热气体到量子气体的相变。我们观察到了原子在三维陷阱中的坍缩,这是具有负散射长度的量子气体的显著特征。此外,在一维光学陷阱中,我们观察到了稳定的强相关量子气体的出现。我们的研究成果为实现量子退化气体提供了一种多功能、快速的方法,而且对时间和资源的要求极低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Fast quantum gas formation via electromagnetically induced transparency cooling

Fast quantum gas formation via electromagnetically induced transparency cooling

Ultracold quantum gases play a pivotal role in many-body physics, quantum sensing and quantum simulation. Over time, methods such as evaporative cooling in bulk ensembles and precision laser-cooling have been employed to effectively achieve quantum degeneracy in atomic gases. A simpler and more rapid way to form quantum gases would, thus, hold considerable promise in advancing the field. Here, we report the creation of a quantum gas by cooling individual rubidium atoms pinned in a three-dimensional optical lattice using electromagnetically induced transparency and adiabatic expansion. After just 10 ms of cooling, we verified the phase transition from a thermal to a quantum gas by adiabatically transferring the atoms to optical dipole traps. We observed the collapse of atoms in three-dimensional traps, a distinctive hallmark of a quantum gas with negative scattering length. Additionally, in a one-dimensional optical trap, we observed the emergence of a stable and strongly correlated quantum gas. Our results introduce a versatile and fast approach to achieving quantum degenerate gases with minimal time and resource requirements.

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来源期刊
Nature Physics
Nature Physics 物理-物理:综合
CiteScore
30.40
自引率
2.00%
发文量
349
审稿时长
4-8 weeks
期刊介绍: Nature Physics is dedicated to publishing top-tier original research in physics with a fair and rigorous review process. It provides high visibility and access to a broad readership, maintaining high standards in copy editing and production, ensuring rapid publication, and maintaining independence from academic societies and other vested interests. The journal presents two main research paper formats: Letters and Articles. Alongside primary research, Nature Physics serves as a central source for valuable information within the physics community through Review Articles, News & Views, Research Highlights covering crucial developments across the physics literature, Commentaries, Book Reviews, and Correspondence.
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