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Author(s): Xin An, Anton Artemyev, Vassilis Angelopoulos, Xiaojia Zhang, Didier Mourenas, and Jacob Bortnik Electromagnetic ion cyclotron waves are expected to pitch-angle scatter and cause atmospheric precipitation of relativistic ($>1\text{ }\text{ }\mathrm{MeV}$) electrons under typical conditions in Earth’s radiation belts. However, it has been a long-standing mystery how relativistic electrons in … [Phys. Rev. Lett. 129, 135101] Published...

Author(s): N. F. Beier, H. Allison, P. Efthimion, K. A. Flippo, L. Gao, S. B. Hansen, K. Hill, R. Hollinger, M. Logantha, Y. Musthafa, R. Nedbailo, V. Senthilkumaran, R. Shepherd, V. N. Shlyaptsev, H. Song, S. Wang, F. Dollar, J. J. Rocca, and A. E. Hussein Short-pulse, laser-solid interactions provide a unique platform for studying complex high-energy-density matter. We present the first demonstration of solid-density, micron-scale keV plasmas...

Author(s): Haomin Sun, Jian Chen, Igor D. Kaganovich, Alexander Khrabrov, and Dmytro Sydorenko We study collective processes for an electron beam propagating through a background plasma using simulations and analytical theory. A new regime where the instability of a Langmuir wave packet can grow locally much faster than ion frequency is clearly identified. The key feature of this new regime i… [Phys. Rev. Lett. 129, 125001] Published Mon Sep...

Author(s): A. Alejo, H. Ahmed, A. G. Krygier, R. Clarke, R. R. Freeman, J. Fuchs, A. Green, J. S. Green, D. Jung, A. Kleinschmidt, J. T. Morrison, Z. Najmudin, H. Nakamura, P. Norreys, M. Notley, M. Oliver, M. Roth, L. Vassura, M. Zepf, M. Borghesi, and S. Kar Premature relativistic transparency of ultrathin, laser-irradiated targets is recognized as an obstacle to achieving a stable radiation pressure acceleration in the “light sail” (LS) mode...

Author(s): A. L. Milder, J. Zielinski, J. Katz, W. Rozmus, D. Edgell, A. Hansen, M. Sherlock, C. Bruulsema, J. P. Palastro, D. Turnbull, and D. H. Froula Measurements were made of the return current instability growth rate, demonstrating its concurrence with nonlocal transport. Thomson scattering was used to measure a maximum growth rate of $5.1×{10}^{9}\text{ }\text{ }\mathrm{Hz}$, which was 3 times less than classical Spitzer-Härm theory predicts...

Author(s): Swarnima Singh, P. Bandyopadhyay, Krishan Kumar, and A. Sen We present the first observations of a square lattice formation in a monodisperse complex plasma system, a configurational transition phenomenon that has long been an experimental challenge in the field. The experiments are conducted in a tabletop L-shaped dusty plasma experimental device in a dc gl… [Phys. Rev. Lett. 129, 115003] Published Thu Sep 08, 2022

Author(s): Yin Wang, Erik P. Gilson, Fatima Ebrahimi, Jeremy Goodman, and Hantao Ji Magnetorotational instability—a process that might explain the dynamics of astrophysical accretion disks—has finally been observed in the laboratory. [Phys. Rev. Lett. 129, 115001] Published Wed Sep 07, 2022