• Open Access

Black and white holes at material junctions

Yaron Kedem, Emil J. Bergholtz, and Frank Wilczek
Phys. Rev. Research 2, 043285 – Published 25 November 2020
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    Abstract

    Electrons in type II Weyl semimetals display one-way propagation, which supports totally reflecting behavior at an endpoint, as one has for black hole horizons viewed from the inside. Junctions of type I and type II lead to equations identical to what one has near black hole horizons, but the physical implications, we suggest, are quite different from expectations which are conventional in that context. The time-reversed, “white hole” configuration is also physically accessible.

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    • Received 22 April 2020
    • Accepted 27 October 2020

    DOI:https://doi.org/10.1103/PhysRevResearch.2.043285

    Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by Bibsam.

    Published by the American Physical Society

    Physics Subject Headings (PhySH)

    1. Research Areas
    Carrier dynamicsCarrier generation & recombinationElectrical conductivityQuantum aspects of black holesQuantum fields in curved spacetimeUnruh effect
    1. Physical Systems
    JunctionsWeyl semimetal
    Condensed Matter, Materials & Applied PhysicsGravitation, Cosmology & AstrophysicsQuantum Information, Science & Technology

    Authors & Affiliations

    Yaron Kedem1, Emil J. Bergholtz1, and Frank Wilczek1,2,3,4

    • 1Department of Physics, Stockholm University, Stockholm SE-106 91 Sweden
    • 2Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 USA
    • 3T. D. Lee Institute, and Wilczek Quantum Center, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
    • 4Department of Physics and Origins Project, Arizona State University, Tempe Arizona 25287 USA

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    Issue

    Vol. 2, Iss. 4 — November - December 2020

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