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Title: Review of the Theoretical Description of Time-Resolved Angle-Resolved Photoemission Spectroscopy in Electron-Phonon Mediated Superconductors

Here. we review recent work on the theory for pump/probe photoemission spectroscopy of electron-phonon mediated superconductors in both the normal and the superconducting states. We describe the formal developments that allow one to solve the Migdal-Eliashberg theory in nonequilibrium for an ultrashort laser pumping field, and explore the solutions which illustrate the relaxation as energy is transferred from electrons to phonons. We also focus on exact results emanating from sum rules and approximate numerical results which describe rules of thumb for relaxation processes. Additionally, in the superconducting state, we describe how Anderson-Higgs oscillations can be excited due to the nonlinear coupling with the electric field and describe mechanisms where pumping the system enhances superconductivity.
Authors:
ORCiD logo [1] ; ORCiD logo [2] ; ORCiD logo [3] ;  [4] ;  [5]
  1. North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics
  2. Max Planck Inst. for the Structure and Dynamics of Matter, Hamburg (Germany)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Inst. for the Structure and Dynamics of Matter
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Inst. for the Structure and Dynamics of Matter; Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials
  5. Georgetown Univ., Washington, DC (United States). Dept. of Physics
Publication Date:
Grant/Contract Number:
SE 2558/2-1; AC02-76SF00515; FG02-08ER46542; AC02-05CH11231; McDevitt bequest
Type:
Accepted Manuscript
Journal Name:
Annalen der Physik (Leipzig)
Additional Journal Information:
Journal Name: Annalen der Physik (Leipzig); Journal Volume: 529; Journal Issue: 9; Journal ID: ISSN 0003-3804
Publisher:
Wiley
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1394073
Alternate Identifier(s):
OSTI ID: 1378792

Kemper, A. F., Sentef, M. A., Moritz, B., Devereaux, T. P., and Freericks, J. K.. Review of the Theoretical Description of Time-Resolved Angle-Resolved Photoemission Spectroscopy in Electron-Phonon Mediated Superconductors. United States: N. p., Web. doi:10.1002/andp.201600235.
Kemper, A. F., Sentef, M. A., Moritz, B., Devereaux, T. P., & Freericks, J. K.. Review of the Theoretical Description of Time-Resolved Angle-Resolved Photoemission Spectroscopy in Electron-Phonon Mediated Superconductors. United States. doi:10.1002/andp.201600235.
Kemper, A. F., Sentef, M. A., Moritz, B., Devereaux, T. P., and Freericks, J. K.. 2017. "Review of the Theoretical Description of Time-Resolved Angle-Resolved Photoemission Spectroscopy in Electron-Phonon Mediated Superconductors". United States. doi:10.1002/andp.201600235. https://www.osti.gov/servlets/purl/1394073.
@article{osti_1394073,
title = {Review of the Theoretical Description of Time-Resolved Angle-Resolved Photoemission Spectroscopy in Electron-Phonon Mediated Superconductors},
author = {Kemper, A. F. and Sentef, M. A. and Moritz, B. and Devereaux, T. P. and Freericks, J. K.},
abstractNote = {Here. we review recent work on the theory for pump/probe photoemission spectroscopy of electron-phonon mediated superconductors in both the normal and the superconducting states. We describe the formal developments that allow one to solve the Migdal-Eliashberg theory in nonequilibrium for an ultrashort laser pumping field, and explore the solutions which illustrate the relaxation as energy is transferred from electrons to phonons. We also focus on exact results emanating from sum rules and approximate numerical results which describe rules of thumb for relaxation processes. Additionally, in the superconducting state, we describe how Anderson-Higgs oscillations can be excited due to the nonlinear coupling with the electric field and describe mechanisms where pumping the system enhances superconductivity.},
doi = {10.1002/andp.201600235},
journal = {Annalen der Physik (Leipzig)},
number = 9,
volume = 529,
place = {United States},
year = {2017},
month = {7}
}