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Author(s): Zheng Gong, Xiaofei Shen, Karen Z. Hatsagortsyan, and Christoph H. Keitel Transient electron dynamics near the interface of counterstreaming plasmas at the onset of a relativistic collisionless shock (RCS) is investigated using particle-in-cell simulations. We identify a slingshotlike injection process induced by the drifting electric field sustained by the flowing focus … [Phys. Rev. Lett. 131, 225101] Published Wed Nov 29, 2023

Author(s): Deepak Sharma, Oded Heber, Daniel Zajfman, and Ryan Ringle We demonstrate both experimentally and using a numerical simulation that, under special conditions, the repulsive Coulomb interaction helps to suppress the emittance growth of an rf-driven bunch of ions in an electrostatic ion beam trap. The underlying mechanisms can be explained by the synchronizat… [Phys. Rev. Lett. 131, 225001] Published Tue Nov 28, 2023

Author(s): Francesco Pecora, Yan Yang, William H. Matthaeus, Alexandros Chasapis, Kristopher G. Klein, Michael Stevens, Sergio Servidio, Antonella Greco, Daniel J. Gershman, Barbara L. Giles, and James L. Burch A novel multispacecraft technique applied to Magnetospheric Multiscale Mission data in the Earth’s magnetosheath enables evaluation of the energy cascade rate from the full Yaglom’s equation. The method differs from existing approaches...

Author(s): M. Lamač, K. Mima, J. Nejdl, U. Chaulagain, and S. V. Bulanov The interaction of intense laser pulses with plasma mirrors has demonstrated the ability to generate high-order harmonics, producing a bright source of extreme ultraviolet (XUV) radiation and attosecond pulses. Here, we report an unexpected transition in this process. We show that the loss of spatio… [Phys. Rev. Lett. 131, 205001] Published Tue Nov 14, 2023

Author(s): Yaozong Xiao, Hao Sun, Bo Liu, Zhentang Zhao, and Chao Feng An attosecond x-ray pulse with known spectrotemporal information is an essential tool for the investigation of ultrafast electron dynamics in quantum systems. Ultrafast free-electron lasers (FELs) have the unique advantage on unprecedented high intensity at x-ray wavelengths. However, no suitable me… [Phys. Rev. Lett. 131, 205002] Published Tue Nov 14, 2023

Author(s): A. O. Nelson, L. Schmitz, C. Paz-Soldan, K. E. Thome, T. B. Cote, N. Leuthold, F. Scotti, M. E. Austin, A. Hyatt, and T. Osborne In a series of high performance diverted discharges on DIII-D, we demonstrate that strong negative triangularity (NT) shaping robustly suppresses all edge-localized mode (ELM) activity over a wide range of plasma conditions: $⟨n⟩=0.1–1.5×{10}^{20}\text{ }\text{ }{\mathrm{m}}^{−3}$, ${P}_{\mathrm{aux… [Phys...

Author(s): M. Labat, O. Chubar, J. Breunlin, N. Hubert, and Å. Andersson Synchrotron radiation (SR) from bending magnets, wigglers, and undulators is now extensively produced for users at storage ring based light sources, with unique properties in terms of average brightness and stability. We present a profound study of bending magnet SR intensity distribution in the ima… [Phys. Rev. Lett. 131, 185001] Published Wed Nov 01, 2023