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  Nonadiabatic nonlinear optics and quantum geometry - Application to the twisted Schwinger effect

Takayoshi, S., Wu, J., & Oka, T. (2021). Nonadiabatic nonlinear optics and quantum geometry - Application to the twisted Schwinger effect. SciPost Physics Core, 11(4): 075, pp. 1-24. doi:10.21468/SciPostPhys.11.4.075.

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 Creators:
Takayoshi, Shintaro1, Author
Wu, Jianda1, Author
Oka, Takashi2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              

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 Abstract: We study the tunneling mechanism of nonlinear optical processes in solids induced by strong coherent laser fields. The theory is based on an extension of the Landau-Zener model with nonadiabatic geometric effects. In addition to the rectification effect known previously, we find two effects, namely perfect tunneling and counterdiabaticity at fast sweep speed. We apply this theory to the twisted Schwinger effect, i.e., nonadiabatic pair production of particles by rotating electric fields, and find a nonperturbative generation mechanism of the opto-valley polarization and photo-current in Dirac and Weyl fermions.

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Language(s): eng - English
 Dates: 2021-10-122021-10-12
 Publication Status: Published in print
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Title: SciPost Physics Core
  Abbreviation : SciPost Phys. Core
Source Genre: Journal
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Publ. Info: Amsterdam, The Netherlands : SciPost
Pages: - Volume / Issue: 11 (4) Sequence Number: 075 Start / End Page: 1 - 24 Identifier: ISSN: 2666-9366
CoNE: https://pure.mpg.de/cone/journals/resource/2666-9366