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  Review of the theoretical description of time-resolved angle-resolved photoemission spectroscopy in electron-phonon mediated superconductors

Kemper, A. F., Sentef, M. A., Moritz, B., Devereaux, T. P., & Freericks, J. K. (in preparation). Review of the theoretical description of time-resolved angle-resolved photoemission spectroscopy in electron-phonon mediated superconductors.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002B-4FED-7 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002B-4FEE-5
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1609.00087.pdf (Preprint), 2MB
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https://hdl.handle.net/11858/00-001M-0000-002B-4FEF-3
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File downloaded from arXiv at 2016-09-13 14:30
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2016
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© A. F. Kemper et al.
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http://arxiv.org/abs/1609.00087 (Preprint)
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 Creators:
Kemper, A. F.1, Author
Sentef, Michael A.2, 3, Author           
Moritz, B.4, Author
Devereaux, T. P.4, 5, Author
Freericks, J. K.6, Author
Affiliations:
1Department of Physics, North Carolina State University, Raleigh, NC 27695, USA, ou_persistent22              
2Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
3Center for Free-Electron Laser Science, 22761 Hamburg, Germany, ou_persistent22              
4Stanford Institute for Materials and Energy Sciences (SIMES), SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, ou_persistent22              
5Geballe Laboratory for Advanced Materials, Stanford University, Stanford, CA 94305, USA, ou_persistent22              
6Department of Physics, Georgetown University, Washington, DC 20057, USA, ou_persistent22              

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Free keywords: Condensed Matter; Superconductivity
 Abstract: 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 focus on exact results emanating from sum rules and approximate numerical results which describe rules of thumb for relaxation processes. In addition, in the superconducting state, we describe how Higg's oscillations can be excited due to the nonlinear coupling with the electric field and how pumping the system can enhance superconductivity.

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Language(s): eng - English
 Dates: 2016-08-31
 Publication Status: Not specified
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Type: No review
 Identifiers: arXiv: 1609.00087
 Degree: -

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