An impurity immersed in a double Fermi Sea
arXiv:2004.12759 · doi:10.1103/PhysRevA.102.033322
Abstract
We present a variational calculation of the energy of an impurity immersed a double Fermi sea of non-interacting Fermions. We show that in the strong-coupling regime, the system undergoes a first order transition between polaronic and trimer states. Our result suggests that the smooth crossover predicted in previous literature for a superfluid background is the consequence of Cooper pairing and is absent in a normal system.
References in corpus (32)
- Many-Body Physics with Ultracold Gases
- Feshbach Resonances in Ultracold Gases
- Observation of Fermi Polarons in a Tunable Fermi Liquid of Ultracold Atoms
- Fermi polaron-polaritons in charge-tunable atomically thin semiconductors
- The Unitary Fermi Gas: From Monte Carlo to Density Functionals
- Resonance superfluidity in a quantum degenerate Fermi gas
- Efimov Physics: a review
- Observation of Attractive and Repulsive Polarons in a Bose-Einstein Condensate
- Bose polarons in the strongly interacting regime
- Universal phase diagram of a strongly interacting Fermi gas with unbalanced spin populations
- Polarons, Dressed Molecules, and Itinerant Ferromagnetism in ultracold Fermi gases
- Collective Oscillations of an Imbalanced Fermi Gas: Axial Compression Modes and Polaron Effective Mass
- Fermi-Polaron: Diagrammatic Monte Carlo for Divergent Sign-Alternating Series
- A Mixture of Bose and Fermi Superfluids
- Normal state of a polarized Fermi gas at unitarity
- Ultra-cold Polarized Fermi Gases
- Impurity in a Bose-Einstein condensate and the Efimov effect
- Boiling a Unitary Fermi Liquid
- Analytical solution of the bosonic three-body problem
- Two-Element Mixture of Bose and Fermi Superfluids
- Observation of two-species vortex lattices in a mixture of mass-imbalance Bose and Fermi superfluids
- Trimers, molecules and polarons in imbalanced atomic Fermi gases
- Three fully polarized fermions close to a p-wave Feshbach resonance
- Universality of an impurity in a Bose-Einstein condensate
- Polarons in Ultracold Fermi Superfluids
- Polaronic atom-trimer continuity in three-component Fermi gases
- 1S0 Proton and Neutron Superfluidity in beta-stable Neutron Star Matter
- Few vs many-body physics of an impurity immersed in a superfluid of spin 1/2 attractive fermions
- Fermi polaron revisited: polaron-molecule transition and coexistence
- The Polaron at Strong Coupling
- A single impurity in an ideal atomic Fermi gas: current understanding and some open problems
- A smooth polaron-molecule crossover in a Fermi system
Cited by in corpus (9)
- Polarons and their induced interactions in highly imbalanced triple mixtures
- Induced interactions and quench dynamics of bosonic impurities immersed in a Fermi sea
- Three-body crossover from a Cooper triple to bound trimer state in three-component Fermi gases near a triatomic resonance
- Polaron spectroscopy of interacting Fermi systems: insights from exact diagonalization
- Emergence of Crystalline Few-body Correlations in Mass-imbalanced Fermi Polarons
- Competing few-body correlations in ultracold Fermi polarons
- Lattice Bose polarons at strong coupling and quantum criticality
- Hybrid-pair superfluidity in a strongly driven Fermi gas
- Dynamical formation of two-fold fragmented many-body state induced by an impurity in a double-well