arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2312.14741cond-mat.quant-gas
收藏

四格点量子环中光子的玻色-爱因斯坦凝聚

Bose-Einstein Condensation of Photons in a Four-Site Quantum Ring

Andreas Redmann, Christian Kurtscheid, Niels Wolf, Frank Vewinger, Julian Schmitt, Martin Weitz

AI总结:

该研究在染料填充微腔构建的四格点环势系统中观测到光子的玻色-爱因斯坦凝聚,验证了光子宏观占据系统基态及格点间的相位相干性,为光量子态的热力学研究提供了实验依据。

摘要:

辐射通过与物质接触实现热平衡是一个众所周知的概念,但将热力学方法应用于复杂的光量子态仍是一项挑战。本文中,我们观测到光子在具有相干隧穿耦合的四格点环势的杂化基态中发生玻色-爱因斯坦凝聚。实验中,我们在空间结构化的染料填充微腔内部实现了叠加有弱光子简谐势的周期闭合环晶格。光子热平衡至室温,且在临界光子数以上,光子会宏观占据零相位缠绕的格点本征态对称线性组合,该组合构成系统的基态。我们通过光学干涉法验证了不同晶格格点处光子的相互相位相干性。

英文摘要:

Thermalization of radiation by contact to matter is a well-known concept, but the application of thermodynamic methods to complex quantum states of light remains a challenge. Here we observe Bose-Einstein condensation of photons into the hybridized ground state of a four-site ring potential with coherent tunnel couplings. In our experiment, the periodically-closed ring lattice superimposed by a weak harmonic trap for photons is realized inside a spatially structured dye-filled microcavity. Photons thermalize to room temperature, and above a critical photon number macroscopically occupy the symmetric linear combination of the site eigenstates with zero phase winding, which constitutes the ground state of the system. The mutual phase coherence of photons at different lattice sites is verified by optical interferometry.

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。

↑