Mixing-demixing transition and collapse of a vortex state in a quasi-two-dimensional boson-fermion mixture
arXiv:0704.2373 · doi:10.1103/PhysRevA.75.053603
Abstract
We investigate the mixing-demixing transition and the collapse in a quasi-two-dimensional degenerate boson-fermion mixture (DBFM) with a bosonic vortex. We solve numerically a quantum-hydrodynamic model based on a new density functional which accurately takes into account the dimensional crossover. It is demonstrated that with the increase of interspecies repulsion, a mixed state of DBFM could turn into a demixed state. The system collapses for interspecies attraction above a critical value which depends on the vortex quantum number. For interspecies attraction just below this critical limit there is almost complete mixing of boson and fermion components. Such mixed and demixed states of a DBFM could be experimentally realized by varying an external magnetic field near a boson-fermion Feshbach resonance, which will result in a continuous variation of interspecies interaction.
arXiv comment9 pages, 11 figures
References in corpus (65)
- Theory of Bose-Einstein condensation in trapped gases
- Atomic Scattering in Presence of an External Confinement and a Gas of Impenetrable Bosons
- Vortex formation in a stirred Bose-Einstein condensate
- Vortices in a Bose-Einstein Condensate
- Observation of a Strongly-Interacting Degenerate Fermi Gas of Atoms
- A quasi-pure Bose-Einstein condensate immersed in a Fermi sea
- Effective wave-equations for the dynamics of cigar-shaped and disc-shaped Bose condensates
- Bose-Einstein condensation in quasi2D trapped gases
- Conversion of an Atomic Fermi Gas to a Long-Lived Molecular Bose Gas
- Bosons in anisotropic traps: ground state and vortices
- Two-species mixture of quantum degenerate Bose and Fermi gases
- Interatomic collisions in a tightly confined Bose gas
- Fermi-Bose quantum degenerate ^40 K - ^87 Rb mixture with attractive interaction
- Observation of Heteronuclear Feshbach Resonances in a Bose-Fermi Mixture
- Observation of Feshbach resonances between two different atomic species
- Optical Generation of Vortices in trapped Bose-Einstein Condensates
- Fifty-fold improvement in the number of quantum degenerate fermionic atoms
- Fermi-Bose mapping for one-dimensional Bose gases
- Tuning of heteronuclear interactions in a quantum-degenerate Fermi-Bose mixture
- Interaction-driven Dynamics of 40K / 87Rb Fermi-Bose Gas Mixtures in the Large Particle Number Limit
- Principal problems in Bose-Einstein condensation of dilute gases
- Bose-Einstein condensation dynamics from the numerical solution of the Gross-Pitaevskii equation
- Vortex stability of interacting Bose-Einstein condensates confined in anisotropic harmonic traps
- Dynamics of a Vortex in a Trapped Bose-Einstein Condensate
- Control of the interaction in a Fermi-Bose mixture
- Structure and stability of trapped atomic boson-fermion mixtures
- Bose-Einstein condensation dynamics in three dimensions by the pseudospectral and finite-difference methods
- Vortex line and ring dynamics in trapped Bose-Einstein condensates
- Soliton trains in Bose-Fermi mixtures
- Vector solitons in nearly-one-dimensional Bose-Einstein condensates
- Mean-field instability of trapped dilute boson-fermion mixtures
- Fermionic bright soliton in a boson-fermion mixture
- Two atoms in an anisotropic harmonic trap
- Mean-field analysis of the stability of a K-Rb Fermi-Bose mixture
- Detecting phonons and persistent currents in toroidal Bose-Einstein condensates by means of pattern formation
- Ideal Quantum Gases in D-dimensional Space and Power-law Potentials
- Collapse of attractive Bose-Einstein condensed vortex states in a cylindrical trap
- Mean-field description of dynamical collapse of a fermionic condensate in a trapped boson-fermion mixture
- Free expansion of Bose-Einstein condensates with quantized vortices
- Induced instability for boson-fermion mixed condensate of Alkali atoms due to attractive boson-fermion interaction
- Transition from 3D to 1D in Bose Gases at Zero Temperature
- Collective excitations in trapped boson-fermion mixtures: from demixing to collapse
- Hydrodynamic Excitations in a Spin-Polarized Fermi Gas under Harmonic Confinement in One Dimension
- Coupled Bose-Einstein condensate: Collapse for attractive interaction
- Exciting, Cooling And Vortex Trapping In A Bose-Condensed Gas
- Bosons in a Toroidal Trap: Ground State and Vortices
- Dimensional Reduction in Bose-Condensed Alkali-Metal Vapors
- Collective excitations of a trapped boson-fermion mixture across demixing
- One-dimensional description of a Bose-Einstein condensate in a rotating closed-loop waveguide
- Quantum Phases of Attractive Matter Waves in a Toroidal Trap
- Finite temperature effects on the collapse of trapped Bose-Fermi mixtures
- Quasi One-Dimensional Bosons in Three-dimensional Traps: From Strong Coupling to Weak Coupling Regime
- K-Rb Fermi-Bose mixtures: vortical states and sag
- Mixing-demixing transition in one-dimensional boson-fermion mixtures
- Mixing-demixing in a trapped degenerate fermion-fermion mixture
- Miscibility in a degenerate fermionic mixture induced by linear coupling
- Quantum Monte Carlo study of quasi-one-dimensional Bose gases
- Free expansion of fermionic dark solitons in a boson-fermion mixture
- Collisional oscillations of trapped boson-fermion mixtures approaching collapse
- Solitons and vortices in ultracold fermionic gases
- Free expansion of attractive and repulsive Bose-Einstein condensed vortex states
- Thermodynamics of Solitonic Matter Waves in a Toroidal Trap
- Boson-fermion demixing in a cloud of lithium atoms in a pancake trap
- Black soliton in a quasi-one-dimensional trapped fermion-fermion mixture
- Dynamics of optically generated vortices in a one-component ultracold fermionic gases
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- One-dimensional superfluid Bose-Fermi mixture: mixing, demixing and bright solitons
- Condensate Fraction of a Two-Dimensional Attractive Fermi Gas
- Structure of two-component Bose-Einstein condensates with respective vortex-antivortex superposition states
- Superfluid Fermi-Fermi mixture: phase diagram, stability, and soliton formation
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- Structure and dynamics of a rotating superfluid Bose-Fermi mixture
- Gap solitons in superfluid boson-fermion mixtures
- Collective oscillations of a Bose-Fermi mixture: Effect of unequal mass of Bose and Fermi particles
- Structure and stability of quasi-two-dimensional boson-fermion mixtures with vortex-antivortex superposed states
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