• Author(s): Lucila Peralta Gavensky, Subir Sachdev, and Nathan Goldman The many-body Chern number of a two-dimensional quantum anomalous Hall insulator can be decomposed as the sum of the Green-function-based invariant N3 and a correction that vanishes whenever the system satisfies Luttinger’s theorem. [Phys. Rev. Lett. 131, 236601] Published Mon Dec 04, 2023
  • Author(s): Bolei Deng, Shu Wang, Chase Hartquist, and Xuanhe Zhao The crack resistance of polymer materials is explained by a new model that incorporates a network of stretchable polymer chains. [Phys. Rev. Lett. 131, 228102] Published Fri Dec 01, 2023
  • Author(s): Liam C. Morrow, Callum Cuttle, and Christopher W. MacMinn The onset time for “viscous fingering”—an instability that can occur at a gas–liquid boundary—depends on the compressibility of the gas, offering a way to control the behavior. [Phys. Rev. Lett. 131, 224002] Published Wed Nov 29, 2023
  • Author(s): Y. Tokunaga, H. Sakai, S. Kambe, P. Opletal, Y. Tokiwa, Y. Haga, S. Kitagawa, K. Ishida, D. Aoki, G. Knebel, G. Lapertot, S. Krämer, and M. Horvatić High-field NMR measurements on single crystals of UTe2 show an enhancement of longitudinal spin fluctuations above 15 Tesla, exhibiting a divergence near the field-induced metamagnetic transition at 35 Tesla. [Phys. Rev. Lett. 131, 226503] Published Wed Nov 29, 2023
  • Author(s): N. Azari, M. Yakovlev, N. Rye, S. R. Dunsiger, S. Sundar, M. M. Bordelon, S. M. Thomas, J. D. Thompson, P. F. S. Rosa, and J. E. Sonier Muon spin relaxation measurements on a new generation of high-quality flux-grown single crystals show that UTe2 does not break time-reversal symmetry. [Phys. Rev. Lett. 131, 226504] Published Wed Nov 29, 2023
  • Author(s): Brandon Livio Annesi, Clarissa Lauditi, Carlo Lucibello, Enrico M. Malatesta, Gabriele Perugini, Fabrizio Pittorino, and Luca Saglietti The solutions of a nonconvex over-parametrized neural network model are geodesically connected in a star-shaped geometry. [Phys. Rev. Lett. 131, 227301] Published Wed Nov 29, 2023
  • Author(s): Marion Mallweger, Murilo Henrique de Oliveira, Robin Thomm, Harry Parke, Natalia Kuk, Gerard Higgins, Romain Bachelard, Celso Jorge Villas-Boas, and Markus Hennrich A new method based on the Autler-Townes effect can be used to measure the motional states of trapped ions in the number basis. [Phys. Rev. Lett. 131, 223603] Published Tue Nov 28, 2023