Control of the interaction in a Fermi-Bose mixture

Abstract

We control the interspecies interaction in a two-species atomic quantum mixture by tuning the magnetic field at a Feshbach resonance. The mixture is composed by fermionic 40K and bosonic 87Rb. We observe effects of the large attractive and repulsive interaction energy across the resonance, such as collapse or a reduced spatial overlap of the mixture, and we accurately locate the resonance position and width. Understanding and controlling instabilities in this mixture opens the way to a variety of applications, including formation of heteronuclear molecular quantum gases.

5 Pages

References in corpus (35)

• Observation of resonance condensation of fermionic atom pairs
• Evidence for Efimov quantum states in an ultracold gas of cesium atoms
• Vortices and Superfluidity in a Strongly Interacting Fermi Gas
• Observation of Bose-Einstein Condensation of Molecules
• Observation of the Pairing Gap in a Strongly Interacting Fermi Gas
• Experimental Study of the BEC-BCS Crossover Region in Lithium 6
• Molecular Probe of Pairing in the BEC-BCS Crossover
• Fermi-Bose quantum degenerate ^40 K - ^87 Rb mixture with attractive interaction
• Ultracold heteronuclear molecules in a 3D optical lattice
• Observation of Heteronuclear Feshbach Resonances in a Bose-Fermi Mixture
• Bose-Fermi Mixtures in a Three-dimensional Optical Lattice
• Localization of bosonic atoms by fermionic impurities in a 3d optical lattice
• Influence of Induced Interactions on the Superfluid Transition in Dilute Fermi Gases
• Observation of Feshbach resonances between two different atomic species
• Three-body recombination at large scattering lengths in an ultracold atomic gas
• Atomic Bose-Fermi mixtures in an optical lattice
• Phonon exchange in dilute Fermi-Bose mixtures: tailoring the Fermi-Fermi interaction
• Mixtures of Bosonic and Fermionic Atoms in Optical Lattices
• Superfluid pairing in a polarized dipolar Fermi gas
• Tuning of heteronuclear interactions in a quantum-degenerate Fermi-Bose mixture
• Creation of a dipolar superfluid in optical lattices
• Feshbach spectroscopy of a K-Rb atomic mixture
• Interaction-driven Dynamics of 40K / 87Rb Fermi-Bose Gas Mixtures in the Large Particle Number Limit
• Commensurate-incommensurate transition of cold atoms in an optical lattice
• Production Efficiency of Ultracold Feshbach Molecules in Bosonic and Fermionic Systems
• Magnetic control of the interaction in ultracold K-Rb mixtures
• p-wave Cooper Pairing of Fermions in Mixtures of Dilute Fermi and Bose Gases
• Mean-field analysis of the stability of a K-Rb Fermi-Bose mixture
• Mean-field description of dynamical collapse of a fermionic condensate in a trapped boson-fermion mixture
• Boson induced s-wave pairing in dilute boson-fermion mixtures
• Mass Dependence of Ultracold Three-Body Collision Rates
• Fermion pairing in Bose-Fermi mixtures
• Finite temperature effects on the collapse of trapped Bose-Fermi mixtures
• Ground-state properties of trapped Bose-Fermi mixtures: role of exchange-correlation
• Expansion of a Fermi gas interacting with a Bose-Einstein condensate

Cited by in corpus (94)

• Feshbach Resonances in Ultracold Gases
• Theory of ultracold Fermi gases
• Bose-Einstein Condensation of Erbium
• Double species condensate with tunable interspecies interactions
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• Dual-Species Bose-Einstein Condensate of ${}^{87}$Rb and ${}^{133}$Cs
• Time dependent impurity in ultracold fermions: orthogonality catastrophe and beyond
• Feshbach resonances in ultracold K(39)
• Tests of universal three-body physics in an ultracold Bose-Fermi mixture
• Observation of low-field Fano-Feshbach resonances in ultracold gases of dysprosium
• Observation of interspecies Feshbach resonances in an ultracold Rb-Cs mixture
• Realization of a strongly interacting Bose-Fermi mixture from a two-component Fermi gas
• Supersolid Bose-Fermi Mixtures in Optical Lattices
• Tunable dual-species Bose-Einstein condensates of ${}^{39}$K and ${}^{87}$Rb
• Transition from a polaronic condensate to a degenerate Fermi gas of heteronuclear molecules
• Observation of a Degenerate Fermi Gas Trapped by a Bose-Einstein Condensate
• Probing the Interface of a Phase-Separated State in a Repulsive Bose-Fermi Mixture
• Accurate near-threshold model for ultracold KRb dimers from interisotope Feshbach spectroscopy
• Induced $p$-wave pairing in Bose-Fermi mixtures
• Superfluidity at the BEC-BCS crossover in two-dimensional Fermi gases with population and mass imbalance
• Stability and breakdown of Fermi polarons in a strongly interacting Fermi-Bose mixture
• Phase separation and collapse in Bose-Fermi mixtures with a Feshbach resonance
• Tightly bound gap solitons in a Fermi gas
• Stability Condition of a Strongly Interacting Boson-Fermion Mixture across an Inter-Species Feshbach Resonance
• Quantum mixtures of ultracold gases of neutral atoms
• Doublon dynamics and polar molecule production in an optical lattice
• Collisional properties of weakly bound heteronuclear dimers
• Casimir forces and quantum friction from Ginzburg radiation in atomic BECs
• Heteronuclear molecules in an optical lattice: Theory and experiment
• Superfluid pairing between fermions with unequal masses
• Quantum and thermal fluctuations in two-component Bose gases
• Gap solitons in a model of a superfluid fermion gas in optical lattices
• Bose-Fermi Pair Correlations in Attractively Interacting Bose-Fermi Atomic Mixtures
• Quantum Defect Theory for High Partial Wave Cold Collisions
• Two-photon photoassociation spectroscopy of CsYb: ground-state interaction potential and interspecies scattering lengths
• Nondestructive Probing of Means, Variances, and Correlations of Ultracold-Atomic-System Densities via Qubit Impurities
• Unstaggered-staggered solitons in two-component discrete nonlinear Schrödinger lattices
• Supersolidity of cold-atom Bose-Fermi mixtures in optical lattices
• Breathing Mode of a BEC Repulsively Interacting with a Fermionic Reservoir
• Quasi-particle Lifetime in a Mixture of Bose and Fermi Superfluids
• p-Wave superfluid and phase separation in atomic Bose-Fermi mixture
• Superfluid and Mott Insulator phases of one-dimensional Bose-Fermi mixtures
• Chandrasekhar-Clogston limit and critical polarization in a Fermi-Bose superfluid mixture
• Generalized Dynamical Mean-Field Theory for Bose-Fermi Mixtures in Optical Lattices
• A possible four-phase coexistence in a single-component system
• Conversion of ${}^{40}$K-${}^{87}$Rb mixtures into stable molecules
• Exact theoretical description of two ultracold atoms in a single site of a 3D optical lattice using realistic interatomic interaction potentials
• Miscibility in a degenerate fermionic mixture induced by linear coupling
• Hidden order in bosonic gases confined in one dimensional optical lattices
• Superfluidity near phase separation in Bose-Fermi mixtures
• Mixing-demixing transition and collapse of a vortex state in a quasi-two-dimensional boson-fermion mixture
• Dimer-atom scattering between two identical fermions and a third particle
• Trapped Phase-Segregated Bose-Fermi Mixtures and their Collective Excitations
• BEC "level" for measuring small forces
• Stability and pairing in quasi-one-dimensional Bose-Fermi mixtures
• Induced interactions and quench dynamics of bosonic impurities immersed in a Fermi sea
• Breathing Mode of a Bose-Einstein Condensate Immersed in a Fermi Sea
• Suppression of the quantum collapse in binary bosonic gases
• Finite-Temperature Study of Bose-Fermi Superfluid Mixtures
• Probing low-energy Lorentz violation from high-energy modified dispersion in dipolar Bose-Einstein condensates
• Dissipative Effects on the Superfluid to Insulator Transition in Mixed-dimensional Optical Lattices
• Collective flow of fermionic impurities immersed in a Bose-Einstein Condensate
• Collective oscillations of a Bose-Fermi mixture: Effect of unequal mass of Bose and Fermi particles
• Analogy electromagnetism-acoustics: Validation and application to local impedance active control for sound absorption
• Measuring out-of-time-ordered correlation functions with a single impurity qubit in a bosonic Josephson junction
• Mixing of ultracold atomic clouds by merging of two magnetic traps
• Thermodynamic stability, compressibility matrix, and effects of mediated interactions in a strongly-interacting Bose-Fermi mixture
• Mixture of scalar bosons and two-color fermions in one dimension: Superfluid-insulator transitions
• Insulator phases of a mixture of spinor fermions and hard-core bosons
• Heteronuclear quantum gas mixtures
• Bistability of Bose-Fermi mixtures
• Two-dimensional boson-fermion mixtures
• Magnetic merging of ultracold atomic gases of ${}^{85}$Rb and ${}^{87}$Rb
• Response functions in multicomponent Luttinger liquids
• Single-particle Excitations and Effects of Hetero-pairing Fluctuations in a Bose-Fermi Mixture with a Feshbach Resonance
• Anderson localization in a correlated fermionic mixture
• Using nanokelvin quantum thermometry to detect timelike Unruh effect in a Bose-Einstein condensate
• Analytical solutions for two heteronuclear atoms in a ring trap
• Position swapping and pinching in Bose-Fermi mixtures with two-color optical Feshbach resonances
• Quantitative theory of composite fermions in Bose-Fermi mixtures at $\nu =1$
• Spin-selective insulators in Bose-Fermi mixtures
• Spin-asymmetric Josephson plasma oscillations
• Phase Equilibrium of Binary Mixtures in Mixed Dimensions
• Superfluid density reduction and spin-imbalanced pairing in a fermionic superfluid due to dynamical boson exchange
• Accelerating analysis of Boltzmann equations using Gaussian mixture models: Application to quantum Bose-Fermi mixtures
• Many-body effects in a Bose-Fermi mixture
• BCS and BEC p-wave pairing in Bose-Fermi gases
• Correlation Effects in a Trapped Bose-Fermi Mixture: Exact Results
• Insulator phases of Bose-Fermi mixtures induced by intraspecies next-neighbor interactions
• Normal-state Properties of a Unitary Bose-Fermi Mixture: A Combined Strong-coupling Approach with Universal Thermodynamics
• Unstaggered-staggered solitons on one- and two-dimensional two-component discrete nonlinear Schrödinger lattices
• Quantum Degenerate Mixtures of Cs and Yb
• Collective Excitations of Harmonically Trapped Ideal Gases
• One-loop renormalization group study of boson-fermion mixtures