Field-theoretical study of the Bose polaron

Abstract

We study the properties of the Bose polaron, an impurity strongly interacting with a Bose-Einstein condensate, using a field-theoretic approach and make predictions for the spectral function and various quasiparticle properties that can be tested in experiment. We find that most of the spectral weight is contained in a coherent attractive and a metastable repulsive polaron branch. We show that the qualitative behavior of the Bose polaron is well described by a non-selfconsistent T-matrix approximation by comparing analytical results to numerical data obtained from a fully selfconsistent T-matrix approach. The latter takes into account an infinite number of bosons excited from the condensate.

11+7 pages, 10 figures. Published Version. Title changed accordingly

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• Polarons and Molecules in a Two-Dimensional Fermi Gas
• Quantum mechanical limitations to spin diffusion in the unitary Fermi gas
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Cited by in corpus (208)

• Observation of Attractive and Repulsive Polarons in a Bose-Einstein Condensate
• Bose polarons in the strongly interacting regime
• Polarons, Dressed Molecules, and Itinerant Ferromagnetism in ultracold Fermi gases
• Cold hybrid ion-atom systems
• Universal few-body physics and cluster formation
• Bose polarons near quantum criticality
• Impurity in a Bose-Einstein condensate: study of the attractive and repulsive branch using quantum Monte-Carlo methods
• Impurity in a Bose-Einstein condensate and the Efimov effect
• Quantum dynamics of ultracold Bose polarons
• Universal many-body response of heavy impurities coupled to a Fermi sea
• Quasiparticle properties of a mobile impurity in a Bose-Einstein condensate
• Creation of Rydberg Polarons in a Bose Gas
• Bipolarons in a Bose-Einstein Condensate
• Variational study of polarons in Bose-Einstein condensates
• Ab initio theory of polarons: formalism and applications
• Non-equilibrium quantum dynamics and formation of the Bose polaron
• Rotation of quantum impurities in the presence of a many-body environment
• Radio frequency spectroscopy of polarons in ultracold Bose gases
• A mesoscopic Rydberg impurity in an atomic quantum gas
• Bose polarons in ultracold atoms in one dimension: beyond the Fröhlich paradigm
• Using polarons for sub-nK quantum non-demolition thermometry in a Bose-Einstein condensate
• Quench Dynamics and Orthogonality Catastrophe of Bose Polarons
• Renormalization group approach to the Fröhlich polaron model: application to impurity-BEC problem
• Analyzing a Bose polaron across resonant interactions
• Strong coupling Bose polarons in a BEC
• Theory of exciton-electron scattering in atomically thin semiconductors
• Bose polarons at finite temperature and strong coupling
• Analytical approach to the Bose polaron problem in one dimension
• Landau Effective Interaction between Quasiparticles in a Bose-Einstein Condensate
• Visualizing Efimov Correlations in the Bose Polaron
• Universality of an impurity in a Bose-Einstein condensate
• Real-Time Dynamics of an Impurity in an Ideal Bose Gas in a Trap
• The Bose polaron problem: effect of mass imbalance on binding energy
• Two impurities in a Bose-Einstein condensate: from Yukawa to Efimov attracted polarons
• Bose polaron as an instance of quantum Brownian motion
• Quantum Monte-Carlo study of the Bose polaron problem in a one-dimensional gas with contact interactions
• Real-space dynamics of attractive and repulsive polarons in Bose-Einstein condensates
• Polarons in Ultracold Fermi Superfluids
• Theory of excitation of Rydberg polarons in an atomic quantum gas
• Deformation of a quantum many-particle system by a rotating impurity
• Polaronic mass renormalization of impurities in BEC: correlated Gaussian wavefunction approach
• Observation of the phononic Lamb shift with a synthetic vacuum
• Mobile impurity in a Bose-Einstein condensate and the orthogonality catastrophe
• Quantum Impurity in a One-dimensional Trapped Bose Gas
• Induced $p$-wave pairing in Bose-Fermi mixtures
• Polaronic atom-trimer continuity in three-component Fermi gases
• Critical slowdown of non-equilibrium polaron dynamics
• Universal aspects of a strongly interacting impurity in a dilute Bose condensate
• Attractive Fermi polarons at nonzero temperature with finite impurityconcentration
• Tunable Fröhlich Polarons of slow-light polaritons in a two-dimensional Bose-Einstein condensate
• Finite-temperature behavior of the Bose polaron
• Fate of the Bose polaron at finite temperature
• Ionic polaron in a Bose-Einstein condensate
• Theory of a resonantly interacting impurity in a Bose-Einstein condensate
• Polarons in a Dipolar Condensate
• Many-body quantum dynamics and induced correlations of Bose polarons
• Strong coupling Bose polarons in a two-dimensional gas
• Quantum behavior of a heavy impurity strongly coupled to a Bose gas
• Bath-Induced Correlations Enhance Thermometry Precision at Low Temperatures
• Charged polarons and molecules in a Bose-Einstein Condensate
• Strong-coupling Bose polarons in 1D: Condensate deformation and modified Bogoliubov phonons
• Prethermalization in the cooling dynamics of an impurity in a BEC
• Strong coupling Bose polarons out of equilibrium: Dynamical RG approach
• Many-body interferometry of magnetic polaron dynamics
• Dynamical variational approach to Bose polarons at finite temperatures
• Dissipative correlated dynamics of a moving impurity immersed in a Bose-Einstein Condensate
• Theory of radio-frequency spectroscopy of impurities in quantum gases
• Quantum Brownian Motion with Inhomogeneous Damping and Diffusion
• Quantum Rydberg Central Spin Model
• Bloch oscillations of bosonic lattice polarons
• Variational principle for quantum impurity systems in and out of equilibrium: application to Kondo problems
• Feynman path-integral treatment of the Bose polaron beyond the Fröhlich model
• Mediated interaction between polarons in a one-dimensional Bose gas
• Heavy polarons in ultracold atomic Fermi superfluids at the BEC-BCS crossover: formalism and applications
• From Efimov Physics to the Bose Polaron using Gaussian States
• An all-coupling theory for the Fröhlich polaron
• Ground-state properties of Dipolar Bose polarons
• Exact quasiparticle properties of a heavy polaron in BCS Fermi superfluids
• Rotation of cold molecular ions inside a Bose-Einstein condensate
• An impurity in a heteronuclear two-component Bose mixture
• Non-Markovian polaron dynamics in a trapped Bose-Einstein condensate
• Mean-field construction for spectrum of one-dimensional Bose polaron
• Life and death of the Bose polaron
• Correlated quantum dynamics of two quenched fermionic impurities immersed in a Bose-Einstein Condensate
• Mediated interactions and photon bound states in an exciton-polariton mixture
• Analytical study of static beyond-Frohlich Bose polarons in one dimension
• Generalized Hartree-Fock-Bogoliubov Description of the Frohlich Polaron
• Quantum dynamics of Bose-polaron in a $d$-dimensional Bose Einstein condensate
• Quench Dynamics of the Ideal Bose Polaron at Zero and Nonzero Temperatures
• Renormalization group study of Bose polarons
• Impurity states in the one-dimensional Bose gas
• Impurity-induced multi-body resonances in a Bose gas
• Strong interactions and bi-excitons in a polariton mixture
• Fermi polarons at finite temperature: Spectral function and rf-spectroscopy
• Crossover polarons in a strongly interacting Fermi superfluid
• New theoretical approaches to Bose polarons
• Self-consistent theory of Bose-Einstein condensate with impurity at finite temperature
• Dynamics of relaxation and dressing of a quenched Bose polaron
• Universal van der Waals Force Between Heavy Polarons in Superfluids
• Mean-field study of repulsive 2D and 3D Bose polarons
• Polarons and their induced interactions in highly imbalanced triple mixtures
• Polarons and bipolarons in a two-dimensional square lattice
• Polaron in dilute 2D Bose gas at low temperatures
• Tunable Polarons in Bose-Einstein Condensates
• Many-body collisional dynamics of impurities injected into a double-well trapped Bose-Einstein condensate
• Polaron in the dilute critical Bose condensate
• Emergence of a sharp quantum collective mode in a one-dimensional Fermi polaron
• Chemistry of a light impurity in a Bose-Einstein condensate
• Thermodynamic signatures of the polaron-molecule transition in a Fermi gas
• Radio-frequency response and contact of impurities in a quantum gas
• Theory of the Rotating Polaron: Spectrum and Self-Localization
• Polaronic effects in one- and two-band quantum systems
• The effect of boson-boson interaction on the Bipolaron formation
• Inducing spin-order with an impurity: phase diagram of the magnetic Bose polaron
• Hartree-Fock treatment of Fermi polarons using the Lee-Low-Pine transformation
• Polariton dynamics in strongly interacting quantum many-body systems
• Bose polaron in spherical trap potentials: Spatial structure and quantum depletion
• Ground state properties of interacting Bose polarons
• Induced interactions and quench dynamics of bosonic impurities immersed in a Fermi sea
• Repulsive polarons in alkaline-earth(-like) atoms across an orbital Feshbach resonance
• Phase diagram for strong-coupling Bose polarons
• Counterflow dynamics of two correlated impurities immersed in a bosonic gas
• Control of anomalous diffusion of a Bose polaron
• Breathing modes of repulsive polarons in Bose-Bose mixtures
• Entanglement of an Impurity in a Few-Body One-Dimensional Ideal Bose System
• Two-dimensional repulsive Fermi polarons with short and long-range interactions
• Roton-induced Bose polaron in the presence of synthetic spin-orbit coupling
• Role of thermal two-phonon scattering for impurity dynamics in a low-dimensional BEC
• Intersections of ultracold atomic polarons and nuclear clusters: How is a chart of nuclides modified in dilute neutron matter?
• Mobile impurities interacting with a few one-dimensional lattice bosons
• Controlled doping of a bosonic quantum gas with single neutral atoms
• Radiofrequency spectroscopy of one-dimensional trapped Bose polarons: crossover from the adiabatic to the diabatic regime
• BEC polaron in harmonic trap potential at weak coupling regime: Lee-Low-Pines type approach
• BEC-Polaron gas in a boson-fermion mixture : a many-body extension of Lee-Low-Pines theory
• Medium-induced Interaction Between Impurities in a Bose-Einstein Condensate
• Strongly interacting Bose-Fermi mixture: mediated interaction, phase diagram and sound propagation
• Angular self-localization of impurities rotating in a bosonic bath
• Superconductivity induced by strong electron-exciton coupling in doped atomically thin semiconductor heterostructures
• Slow dynamics of a mobile impurity interacting with an Anderson insulator
• Strongly interacting impurities in a dilute Bose condensate
• 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
• Particle imbalanced weakly interacting quantum droplets in one-dimension
• The ground state of polaron in an ultracold dipolar Fermi gas
• Collision of impurities with Bose-Einstein condensates
• Fermi polaron in low-density spin-polarized neutron matter
• Interspecies entanglement with impurity atoms in a lattice gas
• Multidimensional Spectroscopy of Time-Dependent Impurities in Ultracold Fermions
• Analytical approach to the Bose polaron \\ via $q$-deformed Lie algebra
• Impurity in a three-dimensional unitary Bose gas
• Variational approach to the two-dimensional Bose polaron
• Dynamics of polaron formation in 1D Bose gases in the strong-coupling regime
• Superfluid flow of polaron polaritons above Landau's critical velocity
• A mixed dimensional Bose polaron
• Behavior of the impurity atom in a weakly-interacting Bose gas
• Single-Particle properties of a strongly-interacting Bose-Fermi mixture with mass and population imbalance
• Goldstino spectrum in an ultracold Bose-Fermi mixture with explicitly broken supersymmetry
• Spectral functions of the strongly interacting 3D Fermi gas
• Polaronic polariton quasiparticles in a dark excitonic medium
• Impurity self-energy in the strongly-correlated Bose systems
• Mean-field properties of impurity in Bose gas with three-body forces
• Stochastic-field approach to the quench dynamics of the one-dimensional Bose polaron
• A Non-Gaussian Variational Approach to Fermi Polarons in One- and Two-dimensional Lattices
• Electronic properties and polaronic dynamics of semi-Dirac system within ladder approximation
• Weakly-interacting Bose-Bose mixtures from the functional renormalisation group
• Spectral properties of a three body atom-ion hybrid system
• Lattice Bose polarons at strong coupling and quantum criticality
• Effects of quantum fluctuations on the dynamics of dipolar Bose polarons
• Exact results for heavy unitary Bose polarons
• Optical conductivity of an anharmonic large polaron gas at weak coupling
• Attractive polaron formed in doped nonchiral/chiral parabolic system within ladder approximation
• General memory kernels and further corrections to the variational path integral approach for the Bogoliubov-Fröhlich Hamiltonian
• A distinguishable single excited-impurity in a Bose-Einstein condensate
• Attractive polaron in a Dirac system within the ladder approximation
• Particle zoo in a doped spin chain: Correlated states of mesons and magnons
• Polaritons for testing the universality of an impurity in a Bose-Einstein condensate
• Disorder in order: Localization without randomness in a cold atom system
• Quantum Cherenkov transition of finite momentum Bose polarons
• Bose polaron in spherically symmetric trap potentials: Ground states with zero and lower angular momenta
• Universal quantum dynamics of Bose polarons
• Bosonic Functional Determinant Approach and its Application to Polaron Spectra
• Polarons in Binary Bose-Einstein Condensates
• Rotational cooling of molecules in a Bose-Einstein-Condensate
• Emergent Mott-insulators at non-integer fillings and devil's staircase induced by attractive interaction in many-body polarons
• Temperature-induced miscibility of impurities in trapped Bose gases
• Momentum-dependent quasiparticle properties of the Fermi polaron from the functional renormalization group
• Spectral flow of trimer states of two heavy impurities and one light condensed boson
• A unified theory of strong coupling Bose polarons: From repulsive polarons to non-Gaussian many-body bound states
• Functional renormalisation group approach to the finite-temperature Bose polaron
• Dynamical symmetry and pair tunneling in a one-dimensional Bose gas colliding with a mobile impurity
• Effective approaches to the dynamical properties of two distinguishable Bose polarons
• Nonergodic dynamics for an impurity interacting with bosons in tilted lattice
• Self-stabilized Bose polarons
• Quartet correlations near the surface of $N=Z$ nuclei
• Quantum Monte Carlo simulation of BEC-impurity tunneling
• Linear rotor in an ideal Bose gas near the threshold for binding
• Composite polaron formed on surface of two-dimensional lattice system in weak coupling regime
• Polaronic neutron in dilute alpha matter: A $p$-wave Bose polaron
• Repulsive Fermi and Bose Polarons in Quantum Gases
• Weak and strong coupling polarons in binary Bose-Einstein condensates
• Functional-renormalization-group approach to strongly coupled Bose-Fermi mixtures in two dimensions
• Polaronic dressing of bound states
• Bose Polaron in a quantum fluid of light
• Stability conditions for a large anharmonic bipolaron
• Optical response of the supersolid polaron
• Phenomenological model of decaying Bose polarons
• Validity of the Fröhlich model for a mobile impurity in a Bose-Einstein condensate
• Quasiparticle nature of the Bose polaron at finite temperature