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  • Letter

Floquet vortex states induced by light carrying an orbital angular momentum

Hwanmun Kim1,2, Hossein Dehghani1,3, Iman Ahmadabadi1,2, Ivar Martin4, and Mohammad Hafezi1,2,3

  • 1Joint Quantum Institute, NIST and University of Maryland, College Park, Maryland 20742, USA
  • 2Department of Physics, University of Maryland, College Park, Maryland 20742, USA
  • 3Departments of Electrical and Computer Engineering and Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
  • 4Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA

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Phys. Rev. B 105, L081301 – Published 14 February, 2022

DOI: https://doi.org/10.1103/PhysRevB.105.L081301

Abstract

We propose a scheme to create an electronic Floquet vortex state by irradiating a two-dimensional semiconductor with a laser light carrying nonzero orbital angular momentum. We analytically and numerically study the properties of the Floquet vortex states, with methods analogous to the ones previously applied to the analysis of superconducting vortex states. We show that such Floquet vortex states are similar to superconducting vortex states, and they exhibit a wide range of tunability. To illustrate the potential utility of such tunability, we show how such states could be used for quantum state engineering.

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Phys. Rev. B 105, L081301– Published 14 February, 2022
  • Received 30 June 2021
  • Revised 7 October 2021
  • Accepted 6 January 2022
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