Topological Aspects of Electron-Phonon Coupling

ORAL

Abstract

Electron-phonon coupling is crucial for various quantum phases, including superconductivity and charge-density wave. We revealed the topological aspects of the electron-phonon coupling strength. In particular, we derived topological lower bounds for the total electron-phonon coupling strength in certain systems with Fermi surfaces. Implications on other systems will also be discussed.

*Acknowlege the support from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No. 101020833), the ONR Grant No. N00014-20-1-2303, the Schmidt Fund for Innovative Research, Simons Investigator Grant No. 404513, the Packard Foundation, the Gordon and Betty Moore Foundation through the EPiQS Initiative, Grant GBMF11070 and Grant No. GBMF8685 towards the Princeton theory program.

–

Presenters

  • Jiabin Yu

    • Princeton University

Authors

  • Jiabin Yu

    • Princeton University

  • Chris Ciccarino

    • College of Letters and Science, University of California, Los Angeles (UCLA), CA, USA 90095.

  • Raffaello Bianco

    • Institut Ruder Boškovic (Croatia)
    • Institut Ruder Boskovic

  • Yuanfeng Xu

    • Department of Physics, Princeton University
    • Princeton University

  • Chaoxing Liu

    • Pennsylvania State University
    • Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
    • Department of Physics, The Pennsylvania State University

  • Ion Errea

    • University of the Basque Country UPV/EH
    • Centro de Física de Materiales (CSIC-UPV/EHU)

  • Prineha Narang

    • College of Letters and Science, University of California, Los Angeles (UCLA), CA, USA 90095
    • Harvard

  • Andrei B Bernevig

    • Princeton University