Angular self-localization of impurities rotating in a bosonic bath
arXiv:1610.04908 · doi:10.1103/PhysRevA.95.033608
Abstract
The existence of a self-localization transition in the polaron problem has been under an active debate ever since Landau suggested it 83 years ago. Here we reveal the self-localization transition for the rotational analogue of the polaron -- the angulon quasiparticle. We show that, unlike for the polarons, self-localization of angulons occurs at finite impurity-bath coupling already at the mean-field level. The transition is accompanied by the spherical-symmetry breaking of the angulon ground state and a discontinuity in the first derivative of the ground-state energy. Moreover, the type of the symmetry breaking is dictated by the symmetry of the microscopic impurity-bath interaction, which leads to a number of distinct self-localized states. The predicted effects can potentially be addressed in experiments on cold molecules trapped in superfluid helium droplets and ultracold quantum gases, as well as on electronic excitations in solids and Bose-Einstein condensates.
arXiv comment7 pages, 2 figures; revised and extended version
References in corpus (49)
- Many body localization and thermalization in quantum statistical mechanics
- Observation of Fermi Polarons in a Tunable Fermi Liquid of Ultracold Atoms
- Quantum dynamics of a single, mobile spin impurity
- Metastability and Coherence of Repulsive Polarons in a Strongly Interacting Fermi Mixture
- Observation of Attractive and Repulsive Polarons in a Bose-Einstein Condensate
- Attractive and repulsive Fermi polarons in two dimensions
- Bose polarons in the strongly interacting regime
- Polarons, Dressed Molecules, and Itinerant Ferromagnetism in ultracold Fermi gases
- Ultrafast many-body interferometry of impurities coupled to a Fermi sea
- Manipulation of Molecules with Electromagnetic Fields
- Field-theoretical study of the Bose polaron
- Suppression and enhancement of impurity scattering in a Bose-Einstein condensate
- Quantum transport through a Tonks-Girardeau gas
- Feynman path-integral treatment of the BEC-impurity polaron
- Small polarons in dilute gas Bose-Einstein condensates
- Impurity in a Bose-Einstein condensate: study of the attractive and repulsive branch using quantum Monte-Carlo methods
- Dynamics of single neutral impurity atoms immersed in an ultracold gas
- Coupling a single electron to a Bose-Einstein condensate
- A Solvable Spin-Glass of Quantum Rotors
- Rotation of quantum impurities in the presence of a many-body environment
- Decoherence of Impurities in a Fermi Sea of Ultracold Atoms
- Erratum: Exact Ground State Energy of the Strong-Coupling Polaron
- Motional Coherence of Fermions Immersed in a Bose Gas
- Photoionizaton of Pure and Doped Helium Nanodroplets
- Structure, rotational dynamics, and superfluidity of small OCS-doped He clusters
- Interaction-Induced Localization of an Impurity in a Trapped Bose Condensate
- Renormalization group approach to the Fröhlich polaron model: application to impurity-BEC problem
- Self-trapping of impurities in Bose-Einstein condensates: Strong attractive and repulsive coupling
- Self-localized impurities embedded in a one dimensional Bose-Einstein condensate and their quantum fluctuations
- Diagrammatic Monte Carlo study of the acoustic and the BEC polaron
- Ultracold chemical reactions of a single Rydberg atom in a dense gas
- Quasiparticle approach to molecules interacting with quantum solvents
- Deformation of a quantum many-particle system by a rotating impurity
- Polaronic mass renormalization of impurities in BEC: correlated Gaussian wavefunction approach
- Polaronic properties of an impurity in a Bose-Einstein condensate in reduced dimensions
- The Rotational Structure of Molecules In the Quantum He4 and He3 Liquids
- Computational spectroscopy of helium-solvated molecules: effective inertia, from small He clusters toward the nano-droplet regime
- Roton-Rotation Coupling of Acetylene in He
- Tunable Fröhlich Polarons of slow-light polaritons in a two-dimensional Bose-Einstein condensate
- Quantum Rotation of HCN and DCN in Helium-4
- Self-localized state and solitons in a Bose-Einstein-condensate-impurity mixture at finite temperature
- An all-coupling theory for the Fröhlich polaron
- Rotation of cold molecular ions inside a Bose-Einstein condensate
- Wigner lattice of ripplopolarons in a multielectron bubble in helium
- Low temperature acoustic polaron localization
- Impurity crystal in a Bose-Einstein condensate
- Anomalous screening of quantum impurities by a neutral environment
- Bose-Einstein Condensates: a model system for particle solvation?
- Induced interaction and crystallization of self-localized impurity fields in a Bose-Einstein condensate
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- Emergence of non-abelian magnetic monopoles in a quantum impurity problem
- Strongly aligned molecules inside helium droplets in the near-adiabatic regime
- Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules
- Theory of the Rotating Polaron: Spectrum and Self-Localization
- Diagrammatic approach to orbital quantum impurities interacting with a many-particle environment
- Suppression of polaron self-localization by correlations
- Microscopic theory of Raman scattering for the rotational organic cation in metal halide perovskites
- Synthetic spin-orbit coupling mediated by a bosonic environment
- Linear rotor in an ideal Bose gas near the threshold for binding
- Quantum rotor in a two-dimensional mesoscopic Bose gas