《科学》 第393卷 第6807期 · 2026年7月9日 · 中文解读
量子气体相位显微镜
A phase microscope for quantum gases · J. C. Brüggenjürgen et al.
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这篇讲什么
本文介绍了一种基于物质波成像的相位显微镜,用于研究二维光学晶格中超冷玻色气体的相干性,并观测到超流相中相位关联的代数衰减。
原文开头
Coherence properties are central to quantum systems and are at the heart of phenomena such as superconductivity. In this work, we studied coherence properties of an ultracold Bose gas in a two- dimensional optical lattice across the thermal phase transition. To infer the phase coherence and phase fluctuation profiles, we used direct matter- wave imaging of higher Talbot revivals and introduced a phase microscope based on a site- resolved mapping of phase fluctuations to density fluctuations during matter- wave imaging. We observed the algebraic decay of the phase correlations in the superfluid phase and a linear temperature increase of the exponent. These techniques may enable studying coherence properties in strongly correlated quantum systems with full spatial resolution. J. C. …
摘自《科学》(Science)第393卷 第6807期 · 2026年7月9日,J. C. Brüggenjürgen et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。

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