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Publications

  • Near-Monochromatic Tuneable Cryogenic Niobium Electron Field Emitter

    Author(s): C. W. Johnson, A. K. Schmid, M. Mankos, R. Röpke, N. Kerker, E. K. Wong, D. F. Ogletree, A. M. Minor, and A. Stibor Researchers have demonstrated a new electron field emitter with unprecedented brightness and spectral purity, promising a breakthrough in electron microscope spectroscopy. [Phys. Rev. Lett. 129, 244802] Published Wed Dec 07, 2022

  • Dynamic Response of an Electron Gas: Towards the Exact Exchange-Correlation Kernel

    Author(s): James P. F. LeBlanc, Kun Chen, Kristjan Haule, Nikolay V. Prokof’ev, and Igor S. Tupitsyn The first accurate prediction of the dynamic charge response and its characterization in terms of the exchange-correlation kernel comes from a new technique based on combining analytic considerations, quantum field theory rules for Feynman diagrams, and stochastic Monte Carlo sampling. [Phys. Rev. Lett. 129, 246401] Published Wed Dec 07, 2022

  • Quasiparticle Interference as a Direct Experimental Probe of Bulk Odd-Frequency Superconducting Pairing

    Author(s): Debmalya Chakraborty and Annica M. Black-Schaffer An innovative technique will allow scientists to probe superconductivity involving an unusual type of electron pairing called odd-frequency pairing. [Phys. Rev. Lett. 129, 247001] Published Wed Dec 07, 2022

  • In Situ Measurement of Electron Energy Evolution in a Laser-Plasma Accelerator

    Author(s): S. Bohlen, T. Brümmer, F. Grüner, C. A. Lindstrøm, M. Meisel, T. Staufer, M. J. V. Streeter, M. C. Veale, J. C. Wood, R. D’Arcy, K. Põder, and J. Osterhoff Researchers have demonstrated a noninvasive technique for measuring the energy evolution of an electron bunch inside a laser-plasma accelerator. [Phys. Rev. Lett. 129, 244801] Published Tue Dec 06, 2022

  • New Measurement Resolves Key Astrophysical Fe XVII Oscillator Strength Problem

    Author(s): Steffen Kühn, Charles Cheung, Natalia S. Oreshkina, René Steinbrügge, Moto Togawa, Sonja Bernitt, Lukas Berger, Jens Buck, Moritz Hoesch, Jörn Seltmann, Florian Trinter, Christoph H. Keitel, Mikhail G. Kozlov, Sergey G. Porsev, Ming Feng Gu, F. Scott Porter, Thomas Pfeifer, Maurice A. Leutenegger, Zoltán Harman, Marianna S. Safronova, José R. Crespo López-Urrutia, and Chintan Shah Researchers have solved a long-standing puzzle surrounding...

  • Probing the Critical Nucleus Size in the Metal-Insulator Phase Transition of ${\mathrm{VO}}_{2}$

    Author(s): Lei Jin, Yin Shi, Frances I. Allen, Long-Qing Chen, and Junqiao Wu A textbook theory for the freezing of water also explains the growth of a new phase in a more complicated phase transition of a different material. [Phys. Rev. Lett. 129, 245701] Published Mon Dec 05, 2022

  • Fundamental Limitation on the Detectability of Entanglement

    Author(s): Pengyu Liu, Zhenhuan Liu, Shu Chen, and Xiongfeng Ma A systematic method to upper bound the detection capability of various entanglement criteria reveals a fundamental trade-off between efficiency and effectiveness. [Phys. Rev. Lett. 129, 230503] Published Wed Nov 30, 2022
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