Theory of excitation of Rydberg polarons in an atomic quantum gas
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Date
2018-02
Publication Type
Journal Article
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yes
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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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published
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Journal / series
Volume
97 (2)
Pages / Article No.
22707
Publisher
American Physical Society