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Author(s): Michael Yannai, Yuval Adiv, Raphael Dahan, Kangpeng Wang, Alexey Gorlach, Nicholas Rivera, Tal Fishman, Michael Krüger, and Ido Kaminer Researchers demonstrate a method to reduce the energy spread of electrons used in electron microscopes, opening the door to time- and energy-resolved studies of quasiparticles such as phonons and plasmons. [Phys. Rev. Lett. 131, 145002] Published Wed Oct 04, 2023

Author(s): M. Agostini et al. (GERDA Collaboration) The GERDA collaboration has made the most precise determination of the two-neutrino double-β decay half-life of 76Ge. [Phys. Rev. Lett. 131, 142501] Published Tue Oct 03, 2023

Author(s): Takashi Tanaka, Yuichiro Kida, Satoshi Hashimoto, Shuji Miyamoto, Tadashi Togashi, Hiromitsu Tomizawa, Aoi Gocho, Keisuke Kaneshima, and Yoshihito Tanaka A new free-electron laser (FEL) scheme that uses chirped microbunching to compress pulse length has been demonstrated, opening the path to the realization of single-cycle FELs. [Phys. Rev. Lett. 131, 145001] Published Tue Oct 03, 2023

Author(s): Daniel Duffy, Joselle M. McCracken, Tayler S. Hebner, Timothy J. White, and John S. Biggins The early failure of thin-walled cones under compression was thought to arise mainly from the presence of imperfections. A new model suggests otherwise. [Phys. Rev. Lett. 131, 148202] Published Tue Oct 03, 2023

Author(s): Yu Duan, Jaime Agudo-Canalejo, Ramin Golestanian, and Benoît Mahault Nonreciprocal interactions and self-propulsion lead to the formation of dynamical patterns that do not rely on self-attraction in binary mixtures of quorum-sensing active particles. [Phys. Rev. Lett. 131, 148301] Published Tue Oct 03, 2023

Author(s): Lin Xin, Maryrose Barrios, Julia T. Cohen, and Michael S. Chapman Spin squeezed ground states of a Bose-Einstein condensate are achieved by a shortcut to adiabaticity involving Hamiltonian tuning. [Phys. Rev. Lett. 131, 133402] Published Fri Sep 29, 2023

Author(s): Jan Reislöhner, Xiao Chen, Doyeong Kim, Silvana Botti, and Adrian N. Pfeiffer By using a pair of offset beams, researchers are able to generate femtosecond UV pulses that can be aimed directly into a target as a spectroscopic probe. [Phys. Rev. Lett. 131, 136902] Published Fri Sep 29, 2023