Production of a dual-species Bose-Einstein condensate of Rb and Cs atoms

Abstract

We report the simultaneous production of Bose-Einstein condensates (BECs) of ${}^{87}$Rb and ${}^{133}$Cs atoms in separate optical traps. The two samples are mixed during laser cooling and loading but are separated by $400\mu$m for the final stage of evaporative cooling. This is done to avoid considerable interspecies three-body recombination, which causes heating and evaporative loss. We characterize the BEC production process, discuss limitations, and outline the use of the dual-species BEC in future experiments to produce rovibronic ground state molecules, including a scheme facilitated by the superfluid-to-Mott-insulator (SF-MI) phase transition.

References in corpus (31)

• A High Phase-Space-Density Gas of Polar Molecules
• Strongly correlated 2D quantum phases with cold polar molecules: controlling the shape of the interaction potential
• Double species condensate with tunable interspecies interactions
• Quantum Gas of Deeply Bound Ground State Molecules
• Ultracold Molecules in the Ro-Vibrational Triplet Ground State
• Optical pumping and vibrational cooling of molecules
• Precision Test of Mass Ratio Variations with Lattice-Confined Ultracold Molecules
• Quantum degenerate two-species Fermi-Fermi mixture coexisting with a Bose-Einstein condensate
• Pinning quantum phase transition for a Luttinger liquid of strongly interacting bosons
• Reactions of ultracold alkali metal dimers
• Degenerate Bose-Bose mixture in a three-dimensional optical lattice
• Cold polar molecules in 2D traps: Tailoring interactions with external fields for novel quantum phases
• Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules
• Observation of heteronuclear atomic Efimov resonances
• Enhanced sensitivity to variation of $m_e/m_p$ in molecular spectra
• Metastable states of a gas of dipolar bosons in a 2D optical lattice
• Efimov Physics in Cold Atoms
• Interaction-driven Dynamics of 40K / 87Rb Fermi-Bose Gas Mixtures in the Large Particle Number Limit
• Calculations of static dipole polarizabilities of alkali dimers. Prospects for alignment of ultracold molecules
• The hyperfine energy levels of alkali metal dimers: ground-state polar molecules in electric and magnetic fields
• Hyperfine, rotational, and vibrational structure of the triplet ground state of Rb molecules
• Novel quantum phases of dipolar Bose gases in optical lattices
• Interlayer superfluidity in bilayer systems of fermionic polar molecules
• Determination of atomic scattering lengths from measurements of molecular binding energies near Feshbach resonances
• Universal rates for reactive ultracold polar molecules in reduced dimensions
• Strong dependence of ultracold chemical rates on electric dipole moments
• Optimized production of a cesium Bose-Einstein condensate
• Superfluidity and dimerization in a multilayered system of fermionic polar molecules
• 1D Quantum Liquids with Power-Law Interactions: a Luttinger Staircase with Polar Molecules
• Electric field suppression of ultracold confined chemical rates
• Collective modes of monolayer, bilayer, and multilayer fermionic dipolar liquid

Cited by in corpus (33)

• Ultracold dense samples of dipolar RbCs molecules in the rovibrational and hyperfine ground state
• Dual-Species Bose-Einstein Condensate of ${}^{87}$Rb and ${}^{133}$Cs
• Production of quantum degenerate strontium gases: Larger, better, faster, colder
• Quantum Engineering of a Low-Entropy Gas of Heteronuclear Bosonic Molecules in an Optical Lattice
• Stability and structure of an anisotropically trapped dipolar Bose-Einstein condensate: angular and linear rotons
• A high phase-space density mixture of ${}^{87}$Rb and ${}^{133}$Cs: towards ultracold heteronuclear molecules
• Feshbach spectroscopy of an ultracold mixture of ${}^{85}$Rb and ${}^{133}$Cs
• Overlapping Bose-Einstein Condensates of ${}^{23}$Na and ${}^{133}$Cs
• Fluctuation driven topological transition of binary condensates in optical lattices
• Many-body collisional dynamics of impurities injected into a double-well trapped Bose-Einstein condensate
• Miscibility and stability of dipolar bosonic mixtures
• Segregated quantum phases of dipolar bosonic mixtures in two-dimensional optical lattices
• Stability of a Bose condensed mixture on a bubble trap
• Atomic Quantum Technologies for Quantum Matter and Fundamental Physics Applications
• Counterflow dynamics of two correlated impurities immersed in a bosonic gas
• Finite temperature spin dynamics of a two-dimensional Bose-Bose atomic mixture
• Phase separation of a Bose-Bose mixture: impact of the trap and particle number imbalance
• Fluctuation and interaction induced instability of dark solitons in single and binary condensates
• Measurement of the tune-out wavelength for ${}^{133}$Cs at $880$ nm
• Kinetic Model of Trapped Finite Temperature Binary Condensates
• Moving binary Bose-Einstein condensates in a weak random potential
• Trapped Bose-Bose mixtures at finite temperature: a quantum Monte Carlo approach
• Long distance optical conveyor-belt transport of ultracold ${}^{133}$Cs and ${}^{87}$Rb atoms
• Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap
• Finite temperature ferromagnetic transition in coherently coupled Bose gases
• Quantum Echo in Two-Component Bose-Einstein Condensates
• Efficiency for preforming molecules from mixtures of light Fermi and heavy Bose atoms in optical lattices: the strong-coupling-expansion method
• Production of dual species Bose-Einstein condensates of ${}^{39}$K and ${}^{87}$Rb
• Equilibration of a finite temperature binary Bose gas formed by population transfer
• Moving Bose mixtures with dipole-dipole interactions
• Relaxation of ferromagnetic domains in a disordered lattice in 2D
• Miscibility-Immiscibility transition of strongly interacting bosonic mixtures in optical lattices
• Controlling Vortex Lattice Structure of Binary Bose-Einstein Condensates via Disorder Induced Vortex Pinning