Fermi polarons in two dimensions

Abstract

We theoretically analyze inverse radiofrequency (rf) spectroscopy experiments in two-component Fermi gases. We consider a small number of impurity atoms interacting strongly with a bath of majority atoms. In two-dimensional geometries we find that the main features of the rf spectrum correspond to an attractive polaron and a metastable repulsive polaron. Our results suggest that the attractive polaron has been observed in a recent experiment [Phys. Rev. Lett. 106, 105301 (2011)].

6 pages, 7 figures

References in corpus (16)

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• Using photoemission spectroscopy to probe a strongly interacting Fermi gas
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• Theoretical description of time-resolved photoemission spectroscopy: application to pump-probe experiments
• Observation of a pairing pseudogap in a two-dimensional Fermi gas
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• Ultra-cold Polarized Fermi Gases
• Viscosity and scale invariance in the unitary Fermi gas
• Excitation spectra and rf-response near the polaron-to-molecule transition from the functional renormalization group
• Crossover from 2D to 3D in a weakly interacting Fermi gas
• Theory of RF-spectroscopy of strongly interacting Fermions
• Polaron-molecule transitions in a two-dimensional Fermi gas
• Polarons and Molecules in a Two-Dimensional Fermi Gas
• Enhanced paraconductivity-like fluctuations in the radio frequency spectra of ultracold Fermi atoms

Cited by in corpus (119)

• Fermi polaron-polaritons in charge-tunable atomically thin semiconductors
• Fermi gases in one dimension: From Bethe Ansatz to experiments
• Attractive and repulsive Fermi polarons in two dimensions
• Electrical control of interlayer exciton dynamics in atomically thin heterostructures
• Polarons, Dressed Molecules, and Itinerant Ferromagnetism in ultracold Fermi gases
• Many-Body Theory of Trion Absorption Features in Two-Dimensional Semiconductors
• Field-theoretical study of the Bose polaron
• Universal many-body response of heavy impurities coupled to a Fermi sea
• Creation of Rydberg Polarons in a Bose Gas
• Polarons in the radio-frequency spectrum of a quasi-two-dimensional Fermi gas
• Optical properties of charged excitons in two-dimensional semiconductors
• Using polarons for sub-nK quantum non-demolition thermometry in a Bose-Einstein condensate
• Quench Dynamics and Orthogonality Catastrophe of Bose Polarons
• Highly polarized Fermi gases in two dimensions
• Theory of exciton-electron scattering in atomically thin semiconductors
• Observation of coherent multiorbital polarons in a two-dimensional Fermi gas
• Observation of a smooth polaron-molecule transition in a degenerate Fermi gas
• Bose polaron as an instance of quantum Brownian motion
• Theory of excitation of Rydberg polarons in an atomic quantum gas
• Polaronic atom-trimer continuity in three-component Fermi gases
• Polaron-Polaritons in the Integer and Fractional Quantum Hall Regimes
• Observation of electrically tunable Feshbach resonances in twisted bilayer semiconductors
• Attractive Fermi polarons at nonzero temperature with finite impurityconcentration
• Repulsive polarons in two-dimensional Fermi gases
• Nonlinear optics in the fractional quantum Hall regime
• Repulsive Fermi Polarons and Their Induced Interactions in Binary Mixtures of Ultracold Atoms
• A Many-Body Theory of the Optical Conductivity of Excitons and Trions in Two-Dimensional Materials
• Strong coupling Bose polarons in a two-dimensional gas
• Quantum critical transport in the unitary Fermi gas
• Bath-Induced Correlations Enhance Thermometry Precision at Low Temperatures
• Dynamics of an impurity in a one-dimensional lattice
• Many Fermi polarons at nonzero temperature
• Many-body interferometry of magnetic polaron dynamics
• Attractive and repulsive exciton-polariton interactions mediated by an electron gas
• Dynamical variational approach to Bose polarons at finite temperatures
• Pairing effects in the non-degenerate limit of the two-dimensional Fermi gas
• Transport of neutral optical excitations using electric fields
• Quantum Rydberg Central Spin Model
• Shear viscosity and spin diffusion in a two-dimensional Fermi gas
• Many-body theory of optical absorption in doped two-dimensional semiconductors
• Heavy polarons in ultracold atomic Fermi superfluids at the BEC-BCS crossover: formalism and applications
• Polaron Problems in Ultracold Atoms: Role of a Fermi Sea across Different Spatial Dimensions and Quantum Fluctuations of a Bose Medium
• Thermal crossover, transition, and coexistence in Fermi polaronic spectroscopies
• Diagrammatic Monte Carlo study of quasi-two-dimensional Fermi-polarons
• Exact quasiparticle properties of a heavy polaron in BCS Fermi superfluids
• Rotation of cold molecular ions inside a Bose-Einstein condensate
• Ab initio lattice results for Fermi polarons in two dimensions
• Non-Markovian polaron dynamics in a trapped Bose-Einstein condensate
• Electron recoil effect in electrically tunable MoSe2 monolayers
• Correlated quantum dynamics of two quenched fermionic impurities immersed in a Bose-Einstein Condensate
• High-precision numerical solution of the Fermi polaron problem and large-order behavior of its diagrammatic series
• Dimensional crossover of nonrelativistic bosons
• The neutron polaron as a constraint on nuclear density functionals
• Tunable Feshbach resonances and their spectral signatures in bilayer semiconductors
• Polaron spectroscopy of a bilayer excitonic insulator
• Fermi polarons at finite temperature: Spectral function and rf-spectroscopy
• Crossover polarons in a strongly interacting Fermi superfluid
• Two distinguishable impurities in BEC: squeezing and entanglement of two Bose polarons
• Fermi polaron revisited: polaron-molecule transition and coexistence
• Pairing instabilities in quasi-two-dimensional Fermi gases
• Pump Probe Spectroscopy of Bose Polarons: Dynamical Formation and Coherence
• Radio frequency spectra of Feshbach molecules in quasi-two dimensional geometries
• High-polarization limit of the quasi-two-dimensional Fermi gas
• Two-dimensional short-range interacting attractive and repulsive Fermi gases at zero temperature
• Emergence of a sharp quantum collective mode in a one-dimensional Fermi polaron
• Quantum-Zeno Fermi polaron in the strong dissipation limit
• Pairing and radio-frequency spectroscopy in two-dimensional Fermi gases
• Composite excitonic states in doped semiconductors
• Microscopic model of the doping dependence of line widths in monolayer transition metal dichalcogenides
• Transverse spin diffusion in strongly interacting Fermi gases
• Nature of polaron-molecule transition in Fermi polarons
• Bose polaron in spherical trap potentials: Spatial structure and quantum depletion
• Dynamics of a Mobile Impurity in a Two Leg Bosonic Ladder
• Crossover from exciton polarons to trions in doped two-dimensional semiconductors at finite temperature
• Induced interactions and quench dynamics of bosonic impurities immersed in a Fermi sea
• Two-dimensional repulsive Fermi polarons with short and long-range interactions
• Roton-induced Bose polaron in the presence of synthetic spin-orbit coupling
• Superconductivity induced by strong electron-exciton coupling in doped atomically thin semiconductor heterostructures
• Polaron spectroscopy of interacting Fermi systems: insights from exact diagonalization
• Quantum Monte Carlo simulations of two-dimensional repulsive Fermi gases with population imbalance
• Superfluidity in Two-Dimensional Imbalanced Fermi Gases
• Efficient variational approach to dynamics of a spatially extended bosonic Kondo model
• Rotons in Optical Excitation Spectra of Monolayer Semiconductors
• Polaron in a $p+ip$ Fermi topological superfluid
• Nonlinear optical response of resonantly driven polaron-polaritons
• Polaritons in an electron gas -- quasiparticles and Landau effective interactions
• Spectral Theory of the Fermi Polaron
• Multidimensional Spectroscopy of Time-Dependent Impurities in Ultracold Fermions
• Atomtronics with a spin: statistics of spin transport and non-equilibrium orthogonality catastrophe in cold quantum gases
• Two-dimensional polaron spectroscopy of Fermi superfluids
• Mobile impurity probing a two-dimensional superfluid phase transition
• Exact Quantum Virial Expansion for the Optical Response of Doped Two-Dimensional Semiconductors
• Two-channel model description of confinement-induced Feshbach molecules
• Mobile Spin Impurity in an Optical Lattice
• Longitudinal-transverse splitting and fine structure of Fermi polarons in two-dimensional semiconductors
• Excitons and trions in CrSBr bilayers
• Finite-range effects in the two-dimensional repulsive Fermi polaron
• Polar molecules in bilayers with high population imbalance
• Spectra of heavy polarons and molecules coupled to a Fermi sea
• Excitonic states of an impurity in a Fermi gas
• Bose polaron in spherically symmetric trap potentials: Ground states with zero and lower angular momenta
• Mobile Impurities and Orthogonality Catastrophe in two-dimensional Vortex Lattices
• Boson-fermion pairing and condensation in two-dimensional Bose-Fermi mixtures
• Mass-gap description of heavy impurities in Fermi gases
• Spectral properties and observables in ultracold Fermi gases
• Momentum-dependent quasiparticle properties of the Fermi polaron from the functional renormalization group
• A unified theory of strong coupling Bose polarons: From repulsive polarons to non-Gaussian many-body bound states
• Emergent Mott-insulators at non-integer fillings and devil's staircase induced by attractive interaction in many-body polarons
• Tunable breakdown of the polaron picture for mobile impurities in a topological semimetal
• High Density Limit of the Fermi Polaron with Infinite Mass
• Ground and excited states of coupled exciton liquids in electron-hole quadrilayers
• Peaks and widths of radio-frequency spectra: An analysis of the phase diagram of ultra-cold Fermi gases
• Bound states in two-dimensional Fermi systems with quadratic band touching
• Efficient variational approach to the Fermi polaron problem in two dimensions, both in and out of equilibrium
• Functional-renormalization-group approach to strongly coupled Bose-Fermi mixtures in two dimensions
• Phase Transitions of Repulsive Two-Component Fermi Gases in Two Dimensions
• Multiple polaron quasiparticles with dipolar fermions in a bilayer geometry
• Non-universal Fermi polaron in quasi two-dimensional quantum gases
• Weak coupling limit for the ground state energy of the 2D Fermi polaron