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Author(s): Md. Shahriar Hossain Shuvo, Xing He, Mithun Ghosh, and Ding-Shyue Yang We report dynamic energy transport across multicomponent molecular junctions observed at the atomic level. A clear temporal sequence of energy transfer is revealed at early times following photoexcitation of Au(111) bonded with self-assembled monolayers of alkanethiols: from the gold surface layer t… [Phys. Rev. Lett. 137, 038001] Published Mon Jul 13, 2026

Author(s): Margarita Kruteva, Jürgen Allgaier, Marina Guenza, Rustem Valiullin, Ingo Hoffmann, and Dieter Richter We have investigated the dynamics of nonentangled and weakly entangled polyisoprene (PI) melts using neutron spin echo spectroscopy and pulsed field gradient NMR and compared the spectra with those from a highly entangled PI melt. Except for Brownian diffusion, which was observed in the long-time re… [Phys. Rev. Lett. 137, 038101...

Author(s): Cheng-Tai Lee, Tom C. Lubensky, and Tomer Markovich A new theoretical framework for a chiral active solid allowing local internal rotations due to active torques shows how odd elasticity emerges in structurally-disordered materials relevant to biological and synthetic systems. [Phys. Rev. Lett. 137, 038301] Published Mon Jul 13, 2026

Author(s): Shivakumar Athani, Benjy Marks, François Guillard, Alistair Gillespie, and Itai Einav Size segregation in granular flows is a well-known phenomenon: laboratory experiments consistently show that large particles migrate toward silo walls during filling, while smaller particles concentrate near the center. Paradoxically, field observations in large-scale industrial silos often report t… [Phys. Rev. Lett. 137, 028202] Published Fri...

Author(s): Johan F. Triana and Felipe Herrera Controlling bond breaking is a long-standing goal in molecular physics. Infrared nanocavities are currently being developed for reaching exotic coupling regimes of cavity QED with a few molecules, but it is not well understood how chemical reactions would proceed in such systems. We study infrared l… [Phys. Rev. Lett. 137, 028001] Published Tue Jul 07, 2026

Author(s): Kimberly J. Daas, Steven Crisostomo, and Kieron Burke Time-dependent density functional theory (TDDFT) is a standard approach for calculating optical excitations of molecules and solids, while ensemble DFT (EDFT) is a promising alternative under development. We introduce ensemble TDDFT (ETDDFT), a practical theory that combines the two, generalizing bo… [Phys. Rev. Lett. 137, 028002] Published Tue Jul 07, 2026

Author(s): Ori Lev, Sagy Lachmann, and Shmuel M. Rubinstein Crumpled Mylar sheets exhibit logarithmic relaxation under both force and displacement-controlled conditions. We perform cyclic relaxation experiments and reveal a continuous family of force-displacement curves that evolve toward equilibrium, bounded by instantaneous and fully relaxed limits. By gen… [Phys. Rev. Lett. 137, 028201] Published Tue Jul 07, 2026