Theory of excitation of Rydberg polarons in an atomic quantum gas

R. Schmidt, J. D. Whalen, R. Ding, F. Camargo, G. Woehl, Jr., S. Yoshida, J. Burgdörfer, F. B. Dunning, E. Demler, H. R. Sadeghpour, and T. C. Killian
Phys. Rev. A 97, 022707 – Published 22 February 2018

Abstract

We present a quantum many-body description of the excitation spectrum of Rydberg polarons in a Bose gas. The many-body Hamiltonian is solved with a functional determinant approach, and we extend this technique to describe Rydberg polarons of finite mass. Mean-field and classical descriptions of the spectrum are derived as approximations of the many-body theory. The various approaches are applied to experimental observations of polarons created by excitation of Rydberg atoms in a strontium Bose-Einstein condensate.

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  • Received 5 September 2017

DOI:https://doi.org/10.1103/PhysRevA.97.022707

©2018 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalCondensed Matter, Materials & Applied Physics

Authors & Affiliations

R. Schmidt1,2,3,*, J. D. Whalen4, R. Ding4, F. Camargo4, G. Woehl, Jr.4,5, S. Yoshida6, J. Burgdörfer6, F. B. Dunning4, E. Demler7, H. R. Sadeghpour1, and T. C. Killian4

  • 1ITAMP, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA
  • 2Institute of Quantum Electronics, ETH Zürich, CH-8093 Zürich, Switzerland
  • 3Max-Planck-Institute for Quantum Optics, 85748 Garching, Germany
  • 4Department of Physics & Astronomy, Rice University, Houston, Texas 77251, USA
  • 5Instituto de Estudos Avançados, 12.228-001 São José dos Campos, São Paulo, Brazil
  • 6Institute for Theoretical Physics, Vienna University of Technology, Vienna, Austria, European Union
  • 7Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA

  • *richard.schmidt@cfa.harvard.edu

See Also

Creation of Rydberg Polarons in a Bose Gas

F. Camargo, R. Schmidt, J. D. Whalen, R. Ding, G. Woehl, Jr., S. Yoshida, J. Burgdörfer, F. B. Dunning, H. R. Sadeghpour, E. Demler, and T. C. Killian
Phys. Rev. Lett. 120, 083401 (2018)

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Vol. 97, Iss. 2 — February 2018

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