All-Optical Production of Chromium Bose-Einstein Condensates

Abstract

We report on the production of ^52Cr Bose Einstein Condensates (BEC) with an all-optical method. We first load 5.10^6 metastable chromium atoms in a 1D far-off-resonance optical trap (FORT) from a Magneto Optical Trap (MOT), by combining the use of Radio Frequency (RF) frequency sweeps and depumping towards the ^5S_2 state. The atoms are then pumped to the absolute ground state, and transferred into a crossed FORT in which they are evaporated. The fast loading of the 1D FORT (35 ms 1/e time), and the use of relatively fast evaporative ramps allow us to obtain in 20 s about 15000 atoms in an almost pure condensate.

4 pages, 4 figures

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Cited by in corpus (154)

• The physics of dipolar bosonic quantum gases
• Spinor Bose-Einstein condensates
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• Recent advances in solid-state organic lasers
• Non-equilibrium quantum magnetism in a dipolar lattice gas
• Self-bound dipolar droplet: a localized matter-wave in free space
• All-Optical Formation of Quantum Degenerate Mixtures
• Spontaneous demagnetization of a dipolar spinor Bose gas at ultra-low magnetic field
• Narrow-line magneto-optical trap for erbium
• The ground state of the polar alkali-Strontium molecules: potential energy curve and permanent dipole moment
• Liquid quantum droplets of ultracold magnetic atoms
• Control of dipolar relaxation in external fields
• Anisotropic excitation spectrum of a dipolar quantum Bose gas
• Soliton Molecules In Dipolar Bose-Einstein Condensates
• Dipolar Stabilization of an Attractive Bose Gas in a One Dimensional Lattice
• Phonon instability in two-dimensional dipolar Bose-Einstein Condensates
• Stability of dark solitons in three dimensional dipolar Bose-Einstein condensates
• Universal Scaling Laws for Correlation Spreading in Quantum Systems with Short- and Long-Range Interactions
• Structure formation during the collapse of a dipolar atomic Bose-Einstein condensate
• Ferro-Nematic ground state of the dilute dipolar Fermi gas
• Collective excitations of a dipolar Bose-Einstein condensate
• Symmetry Classification of Spinor Bose-Einstein Condensates
• Vortices in dipolar condensates with dominant dipolar interactions
• Scattering resonances and two-particle bound states of the extended Hubbard model
• Dipolar condensates confined in a toroidal trap: ground state and vortices
• Anisotropic and long-range vortex interactions in two-dimensional dipolar Bose gases
• Spin relaxation and band excitation of a dipolar BEC in 2D optical lattices
• Hybrid multi-site excitations in dipolar condensates in optical lattices
• Narrow-line magneto-optical trap for dysprosium atoms
• Faraday patterns in dipolar Bose-Einstein condensates
• Bright solitons in a 2D spin-orbit-coupled dipolar Bose-Einstein condensate
• Thermodynamics of a Bose Einstein condensate with free magnetization
• A two-species five-beam magneto-optical trap for highly magnetic Er and Dy atoms
• Order parameter and detection for crystallized dipolar bosons in lattices
• Creating two-dimensional bright solitons in dipolar Bose-Einstein condensates
• Anisotropic optical trapping of ultracold erbium atoms
• A dipolar self-induced bosonic Josephson junction
• Roton confinement in trapped dipolar Bose-Einstein condensates
• Phase-slippage and self-trapping in a self-induced bosonic Josephson junction
• Vortices and vortex lattices in quantum ferrofluids
• Two dimensional bright solitons in dipolar Bose-Einstein condensates with tilted dipoles
• Controllable non-local interactions between dark solitons in dipolar condensates
• Collective excitation frequencies and stationary states of trapped dipolar Bose-Einstein condensates in the Thomas-Fermi regime
• Matter-wave solitons supported by field-induced dipole-dipole repulsion with a spatially modulated strength
• Suppression of the quantum-mechanical collapse by repulsive interactions in a quantum gas
• Dipolar Bose-Einstein condensates in a PT-symmetric double-well potential
• Stability and structure of an anisotropically trapped dipolar Bose-Einstein condensate: angular and linear rotons
• Spreading of Correlations and Entanglement in the Long-Range Transverse Ising Chain
• Bose-Fermi mixtures of self-assembled filaments of fermionic polar molecules
• Correlations of strongly interacting ultracold dipolar bosons in optical lattices
• Continuous Loading of a Conservative Trap from an Atomic Beam
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• Collisions of anisotropic two-dimensional bright solitons in dipolar Bose-Einstein condensates
• All optical cooling of ${}^{39}$K to Bose Einstein condensation
• Variational methods with coupled Gaussian functions for Bose-Einstein condensates with long-range interactions. I. General concept
• Resonant demagnetization of a dipolar BEC in a 3D optical lattice
• All-Optical BEC in a 1.06 micron dipole trap
• Quantum droplets of quasi-one-dimensional dipolar Bose-Einstein condensates
• Exploring the Stability and Dynamics of Dipolar Matter-Wave Dark Solitons
• How to observe dipolar effects in spinor Bose-Einstein condensates
• A general theory of flattened dipolar condensates
• Mean-field description of dipolar bosons in triple-well potentials
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• Phase transition from straight into twisted vortex-lines in dipolar Bose-Einstein condensates
• Cold atoms in double-well optical lattices
• Supersolid in a one-dimensional model of hard-core bosons
• Detecting One-Dimensional Dipolar Bosonic Crystal Orders via Full Distribution Functions
• Variational calculations for anisotropic solitons in dipolar Bose-Einstein condensates
• Engineering Bright Matter-Wave Solitons of Dipolar Condensates
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• Instability of Rotationally Tuned Dipolar Bose-Einstein Condensates
• Tunable dipolar resonances and Einstein-de Haas effect in a Rb-87 atoms condensate
• Pitchfork bifurcations in blood-cell shaped dipolar Bose-Einstein condensates
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• Spin squeezing in dipolar spinor condensates
• Quantum ferrofluid turbulence
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• Supersolid phase in atomic gases with magnetic dipole interaction
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• Polarized cold cloud of thulium atom
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• Nonequilibrium dynamics of an ultracold dipolar gas
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• Quantum theory of bright matter wave solitons in harmonic confinement
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• Violent relaxation in quantum fluids with long-range interactions
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• Vortices in the two-dimensional dipolar Bose gas
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• Time-of-Flight Roton Spectroscopy in Dipolar Bose-Einstein Condensates
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• Weakly bound solitons and two-soliton molecules in dipolar Bose-Einstein condensates
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• Continuous wave solutions in spinor Bose-Einstein condensates
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• The influence of optical molasses in loading a shallow optical trap
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• Axial collective mode of a dipolar quantum droplet
• Laser-induced thermal source for cold atoms
• Resonant dynamics of chromium condensates
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• Dipolar particles in a double-trap confinement: Response to tilting the dipolar orientation
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• Long-range interactions between ultracold atoms and molecules
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• Improving the spectroscopic knowledge of neutral Neodymium
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• Density engineering via inter-condensate dipole-dipole interactions
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• Exact Solvability Of Entanglement For Arbitrary Initial State in an Infinite-Range Floquet System
• Anomalous non-thermal fixed point in a quasi-two-dimensional dipolar Bose gas
• Analog cosmology with spinor BECs
• Quasiparticle spectra of mixtures of dipolar and non-dipolar condensates at zero and finite temperatures
• Roton-mediated soliton bound states in binary dipolar condensates
• Unvortex Lattice and Topological Defects in Rigidly Rotating Multicomponent Superfluids
• Derivation of the time-dependent Gross-Pitaevskii equation for the dipolar gases
• Quantum dynamics of spin-J particles in static and rotating magnetic fields: Entanglement resonances and kinks