Theory of excitation of Rydberg polarons in an atomic quantum gas

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 functional determinant theory, 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.

14 pages, 9 figures. arXiv admin note: substantial text overlap with arXiv:1706.03717

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• Feynman path-integral treatment of the Bose polaron beyond the Fröhlich model
• Quantum Rydberg Central Spin Model
• Rydberg impurity in a Fermi gas: Quantum statistics and rotational blockade
• Quench Dynamics of the Ideal Bose Polaron at Zero and Nonzero Temperatures
• Formation of long-range Rydberg molecules in two-component ultracold gases
• Universal van der Waals Force Between Heavy Polarons in Superfluids
• Dressed ion-pair states of an ultralong-range Rydberg molecule
• Alignment of s-state Rydberg molecules in magnetic fields
• Photon Subtraction by Many-Body Decoherence
• Plasma-enhanced interaction and optical nonlinearities of Cu${}_2$O Rydberg excitons
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• Rydberg Composites
• Efficient variational approach to dynamics of a spatially extended bosonic Kondo model
• Dynamics of a trapped ion in a quantum gas: effects of particle statistics
• Non-equilibrium dynamics of dipolar polarons
• The building principle of triatomic trilobite Rydberg molecules
• Loss rates for high-$n$, $49\lesssim n\lesssim 150$, 5sns(${}^3$S${}_1$) Rydberg atoms excited in an ${}^{84}$Sr Bose-Einstein condensate
• Tayloring Bose-Einstein condensate environments for a Rydberg impurity
• Ion-induced interactions in a Tomonaga-Luttinger liquid
• Superfluid flow of polaron polaritons above Landau's critical velocity
• In situ observation of chemistry in Rydberg molecules within a coherent solvent
• Imaging the interface of a qubit and its quantum-many-body environment
• Bosonic Functional Determinant Approach and its Application to Polaron Spectra
• Breaking and trapping Cooper pairs by Rydberg-molecule spectroscopy in atomic Fermi superfluids
• Dynamics of atoms within atoms
• Probing polaron clouds by Rydberg atom spectroscopy
• Self-stabilized Bose polarons
• Tunable pairing with local spin-dependent Rydberg molecule potentials in an atomic Fermi superfluid
• Ring Rydberg Composites
• Surface excitation of Rydberg dressed quantum droplet of Bose-Einstein Condensates