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Author(s): Isak Cecil Onsager Rukan, Jan Gulla, and Johannes Skaar Removing a mirror while a single photon is in the process of reflecting creates a quantum state of countless photons, theorists say. [Phys. Rev. Lett. 137, 033601] Published Wed Jul 15, 2026

Author(s): Chenxiao Hao, Tianhao Xian, Zhenghu Chang, Yahan Du, and Li Zhan The framework of superconductivity unveiled the striking concept that electrons form Cooper pairs through the subtle interplay of lattice vibrations, surmounting their Coulombic repulsion in the process. The concept of Cooper pairs has been established beyond the Fermi system, and this pairing mecha… [Phys. Rev. Lett. 137, 033801] Published Wed Jul 15, 2026

Author(s): Alexander Aeppli et al. (BACON Collaboration) We report high-precision frequency ratio measurements between optical atomic clocks based on $^{27}{\mathrm{Al}}^{+}$, $^{171}\mathrm{Yb}$, and $^{87}\mathrm{Sr}$. With total fractional uncertainties at or below $3.2×{10}^{−18}$, these measurements meet an important milestone criterion for redefinit… [Phys. Rev. Lett. 137, 033201] Published Tue Jul 14, 2026

Author(s): Yihan Wang, Domenico Bongiovanni, Dario Jukić, Sihong Lei, Zhichan Hu, Daohong Song, Jingjun Xu, Roberto Morandotti, Hrvoje Buljan, and Zhigang Chen Angular momentum conservation stands as one of the most fundamental and robust laws of physics. In discrete lattices, however, its realization can deviate markedly from the continuous case, especially in the presence of nontrivial momentum-space band touchings. Here, we investigate angular...

Author(s): S. A. Moiseev, K. I. Gerasimov, M. M. Minnegaliev, I. V. Brekotkin, and E. S. Moiseev Ramsey resonance is a high-resolution technique used in spectroscopy, precise measurement of time and frequency, and the creation of modern clocks. The Ramsey experiments are typically done in optically dilute samples of atoms to improve homogeneity and avoid backaction of atoms on excitation pulses… [Phys. Rev. Lett. 137, 023603] Published Wed...

Author(s): Akhil Ayyadevara, Anand Prakash, Shovan Dutta, Arun Paramekanti, and S. A. Rangwala Laser-cooled ions confined in electromagnetic traps provide a unique, tunable mesoscopic system where the interplay of the trapping potential, nonlinear Coulomb interactions, and laser-ion scattering generates rich, collective dynamics. In this work, we engineer thermally activated switching between… [Phys. Rev. Lett. 137, 023002] Published Tue Jul...

Author(s): Xueshi Li (李学诗), Ziwei Wang (王子维), Yan Chen (陈岩), Dong Liu (刘栋), Kaili Xiong (熊凯莉), Guangfeng Wang (王光丰), Jiantao Ma (马剑涛), Ying Yu (喻颖), Jiawei Wang (王嘉威), Zhanling Wang (王占领), Xiao Li (李霄), Xianfeng Chen (陈险峰), Erez Hasman, Bo Wang (王波), Jin Liu (刘进), and Tian Jiang (江天) Cavity quantum electrodynamics (cQED) harnesses light-matter interactions to produce nonclassical light states. However, a fundamental challenge lies in simultaneously...