Quantum degenerate dipolar Fermi gas
arXiv:1202.4444 · doi:10.1103/PhysRevLett.108.215301
Abstract
The interplay between crystallinity and superfluidity is of great fundamental and technological interest in condensed matter settings. In particular, electronic quantum liquid crystallinity arises in the non-Fermi liquid, pseudogap regime neighboring a cuprate's unconventional superconducting phase. While the techniques of ultracold atomic physics and quantum optics have enabled explorations of the strongly correlated, many-body physics inherent in, e.g., the Hubbard model, lacking has been the ability to create a quantum degenerate Fermi gas with interparticle interactions---such as the strong dipole-dipole interaction---capable of inducing analogs to electronic quantum liquid crystals. We report the first quantum degenerate dipolar Fermi gas, the realization of which opens a new frontier for exploring strongly correlated physics and, in particular, the quantum melting of smectics in the pristine environment provided by the ultracold atomic physics setting. A quantum degenerate Fermi gas of the most magnetic atom 161Dy is produced by laser cooling to 10 uK before sympathetically cooling with ultracold, bosonic 162Dy. The temperature of the spin-polarized 161Dy is a factor T/TF=0.2 below the Fermi temperature TF=300 nK. The co-trapped 162Dy concomitantly cools to approximately Tc for Bose-Einstein condensation, thus realizing a novel, nearly quantum degenerate dipolar Bose-Fermi gas mixture.
6 pages, 3 figures
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Cited by in corpus (51)
- Topological phases in ultracold polar-molecule quantum magnets
- Cooling and thermometry of atomic Fermi gases
- Observation of Fermi surface deformation in a dipolar quantum gas
- Precision Measurement of Transition Matrix Elements via Light Shift Cancellation
- Strongly interacting ultracold polar molecules
- Controlling interactions between highly-magnetic atoms with Feshbach resonances
- A chromium dipolar Fermi sea
- Bose-Einstein condensation of 162Dy and 160Dy
- Phase structure of mass- and spin-imbalanced unitary Fermi gases
- Anisotropic polarizability of erbium atoms
- Weyl Superfluidity in a Three-dimensional Dipolar Fermi Gas
- Fermionic suppression of dipolar relaxation: Observation of universal inelastic dipolar scattering
- Cluster Luttinger liquids and emergent supersymmetric conformal critical points in the one-dimensional soft-shoulder Hubbard model
- Anisotropic dependence of tune-out wavelength near Dy 741-nm transition
- Thermalization of acoustic excitations in a strongly interacting one-dimensional quantum liquid
- Spatial separation of rotating binary Bose-Einstein condensate by tuning the dipolar interactions
- Two-dimensional Bose gas of tilted dipoles: roton instability and condensate depletion
- Finite-temperature trapped dipolar Bose gas
- Collective excitations of quasi-two-dimensional trapped dipolar fermions: transition from collisionless to hydrodynamic regime
- Quantum phases of attractive bosons on a Bose-Hubbard ladder with three-body constraint
- Ab initio properties of the ground-state polar and paramagnetic europium-alkali-metal-atom and europium-alkaline-earth-metal-atom molecules
- Fixed-node diffusion Monte Carlo study of the BCS-BEC crossover in a bilayer system of fermionic dipoles
- Lifetime of Feshbach dimers in a Fermi-Fermi mixture of Li and K
- Competition between Bose Einstein Condensation and spin dynamics
- Critical Entanglement for the Half-Filled Extended Hubbard Model
- Unconventional Spin Density Waves in Dipolar Fermi Gases
- Floquet FFLO superfluids and Majorana fermions in a shaken fermionic optical lattice
- Density-wave phases of dipolar fermions in a bilayer
- Coexistence of density wave and superfluid order in a dipolar Fermi gas
- Anisotropic collisions of dipolar Bose-Einstein condensates in the universal regime
- Spontaneous time-reversal symmetry breaking for spinless fermions on a triangular lattice
- Magnetostriction and exchange effects in trapped dipolar Bose and Fermi gases
- Vortex lattices in dipolar two-component Bose-Einstein condensates
- Anisotropic Coherence properties in a trapped quasi2D dipolar gas
- Confinement-induced collapse of a dipolar Bose-Einstein condensate
- Entanglement entropy of the long-range Dyson hierarchical model
- Driving Dipolar Fermions into the Quantum Hall Regime by Spin-Flip Induced Insertion of Angular Momentum
- A 30 W, sub-kHz frequency-locked laser at 532 nm
- Unconventional symmetries of Fermi liquid and Cooper pairing properties with electric and magnetic dipolar fermions
- Possible quantum phase-manipulation of a two-leg ladder in mixed-dimensional fermionic cold atoms
- Phase diagram of two-component dipolar fermions in one-dimensional optical lattices
- Second-order interaction corrections to the Fermi surface and the quasiparticle properties of dipolar fermions in three dimensions
- Collective excitations of a harmonically trapped, two-dimensional, spin-polarized dipolar Fermi gas in the hydrodynamic regime
- Stability of a trapped dipolar quantum gas
- A local exchange theory for trapped dipolar gases
- Effect of short-range interaction for collision of ultracold dipoles
- Fractional quantum Hall states of dipolar fermions in a strained optical lattice
- Few-body collective excitations beyond Kohn's theorem in quantum Hall systems
- Leggett mode in a two-component Fermi gas with dipolar interactions
- Identifying insulating states of ultra cold atoms with cavity transmission spectrum
- Enhancing quantum order with fermions by increasing species degeneracy