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 (65)

• Feshbach Resonances in Ultracold Gases
• A High Phase-Space-Density Gas of Polar Molecules
• The physics of dipolar bosonic quantum gases
• Quantum computation with trapped polar molecules
• Cold and Ultracold Molecules: Science, Technology, and Applications
• Production of cold molecules via magnetically tunable Feshbach resonances
• Evidence for Efimov quantum states in an ultracold gas of cesium atoms
• Quantum-State Controlled Chemical Reactions of Ultracold KRb Molecules
• Creation of ultracold molecules from a Fermi gas of atoms
• Quantum phases of dipolar bosons in optical lattices
• Formation of ultracold polar molecules in the rovibrational ground state
• Dipolar collisions of polar molecules in the quantum regime
• Realization of an Excited, Strongly-Correlated Quantum Gas Phase
• Optical Production of Ultracold Polar Molecules
• Strongly correlated 2D quantum phases with cold polar molecules: controlling the shape of the interaction potential
• Two-species mixture of quantum degenerate Bose and Fermi gases
• Double species condensate with tunable interspecies interactions
• A two atomic species superfluid
• Fermi-Bose quantum degenerate ^40 K - ^87 Rb mixture with attractive interaction
• Quantum Gas of Deeply Bound Ground State Molecules
• Ultracold Molecules in the Ro-Vibrational Triplet Ground State
• Quantum gas of rovibronic ground-state molecules in an optical lattice
• Observation of Heteronuclear Feshbach Resonances in a Bose-Fermi Mixture
• Quantum Phases of Cold Polar Molecules in 2D Optical Lattices
• 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
• Coherent transfer of photoassociated molecules into the rovibrational ground state
• Universal rate constants for reactive collisions of ultracold molecules
• Cold polar molecules in 2D traps: Tailoring interactions with external fields for novel quantum phases
• Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules
• Quantum magnetism with multicomponent polar molecules in an optical lattice
• Creation of a molecular condensate by dynamically melting a Mott-insulator
• Observation of heteronuclear atomic Efimov resonances
• Enhanced sensitivity to variation of $m_e/m_p$ in molecular spectra
• Supersolid phase with cold polar molecules on a triangular lattice
• High-precision calculations of van der Waals coefficients for heteronuclear alkali-metal dimers
• Metastable states of a gas of dipolar bosons in a 2D optical lattice
• Creation of a dipolar superfluid in optical lattices
• Interaction-driven Dynamics of 40K / 87Rb Fermi-Bose Gas Mixtures in the Large Particle Number Limit
• Efimov Physics in Cold Atoms
• 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
• Observation of interspecies Feshbach resonances in an ultracold Rb-Cs mixture
• Collisional Stability of 40K Immersed in a Strongly Interacting Fermi Gas of 6Li
• 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
• Stability of superfluid and supersolid phases of dipolar bosons in optical lattices
• Optimized production of a cesium Bose-Einstein condensate
• Superfluidity and dimerization in a multilayered system of fermionic polar molecules
• A Simple Quantum Model of Ultracold Polar Molecule Collisions
• 1D Quantum Liquids with Power-Law Interactions: a Luttinger Staircase with Polar Molecules
• Electric field suppression of ultracold confined chemical rates
• Controlling two-species Mott-insulator phses in an optical lattice to form an array of dipolar molecules
• Collective modes of monolayer, bilayer, and multilayer fermionic dipolar liquid
• Improving the efficiency of ultracold dipolar molecule formation by first loading onto an optical lattice
• Bose-Einstein condensation of 87Rb in a levitated crossed dipole trap
• Optimal trapping wavelengths of Cs${}_2$ molecules in an optical lattice

Cited by in corpus (81)

• 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
• Dynamics of single neutral impurity atoms immersed in an ultracold gas
• Towards the production of ultracold ground-state RbCs molecules: Feshbach resonances, weakly bound states, and coupled-channel model
• Quantum degenerate mixtures of strontium and rubidium atoms
• Renormalization group approach to the Fröhlich polaron model: application to impurity-BEC problem
• Phase Separation and Dynamics of two-component Bose-Einstein condensates
• Tunable dual-species Bose-Einstein condensates of ${}^{39}$K and ${}^{87}$Rb
• Production of quantum degenerate strontium gases: Larger, better, faster, colder
• Roton immiscibility in a two-component dipolar Bose gas
• A double species ${}^{23}$Na and ${}^{87}$Rb Bose-Einstein condensate with tunable miscibility via an interspecies Feshbach resonance
• Quantum Engineering of a Low-Entropy Gas of Heteronuclear Bosonic Molecules in an Optical Lattice
• Molecular spectroscopy for ground-state transfer of ultracold RbCs molecules
• Exotic vortex lattices in two-species Bose-Einstein condensates
• Production of optically trapped ${}^{87}$RbCs Feshbach molecules
• A Single Atom Thermometer for Ultracold Gases
• Universalities in ultracold reactions of alkali polar molecules
• Neutral Impurities in a Bose-Einstein Condensate for Simulation of the Fröhlich-Polaron
• Thermal suppression of phase separation in condensate mixtures
• Quantum and thermal fluctuations in two-component Bose gases
• A new quantum gas apparatus for ultracold mixtures of K and Cs and KCs ground-state molecules
• Dual-species Bose-Einstein condensate of 41K and 87Rb in a hybrid trap
• Stability and structure of an anisotropically trapped dipolar Bose-Einstein condensate: angular and linear rotons
• Goldstone modes and bifurcations in phase-separated binary condensates at finite temperature
• Time-of-flight expansion of binary Bose-Einstein condensates at finite temperature
• A high phase-space density mixture of ${}^{87}$Rb and ${}^{133}$Cs: towards ultracold heteronuclear molecules
• Splitting of singly and doubly quantized composite vortices in two-component Bose-Einstein condensates
• 3D quaternionic condensations, Hopf invariants, and skyrmion lattices with synthetic spin-orbit coupling
• Stochastic Growth Dynamics and Composite Defects in Quenched Immiscible Binary Condensates
• Ground-state multiquantum vortices in rotating two-species superfluids
• Feshbach spectroscopy of an ultracold mixture of ${}^{85}$Rb and ${}^{133}$Cs
• Overlapping Bose-Einstein Condensates of ${}^{23}$Na and ${}^{133}$Cs
• Quantum Phases of Dipolar Bosons in Bilayer Geometry
• Numerical study of localized impurity in a Bose-Einstein condensate
• Optical lattice influenced geometry of quasi-2D binary condensates and quasiparticle spectra
• Fluctuation driven topological transition of binary condensates in optical lattices
• Dynamics of phase separation in two species Bose-Einstein condensates with vortices
• Bose-Einstein condensation of 87Rb in a levitated crossed dipole trap
• Many-body collisional dynamics of impurities injected into a double-well trapped Bose-Einstein condensate
• Miscibility and stability of dipolar bosonic mixtures
• Tunable Polarons in Bose-Einstein Condensates
• Optimal trapping wavelengths of Cs${}_2$ molecules in an optical lattice
• Segregated quantum phases of dipolar bosonic mixtures in two-dimensional optical lattices
• Stability of a Bose condensed mixture on a bubble trap
• Immiscible and miscible states in binary condensates in the ring geometry
• Atomic Quantum Technologies for Quantum Matter and Fundamental Physics Applications
• Counterflow dynamics of two correlated impurities immersed in a bosonic gas
• Measurement of the tune-out wavelength for ${}^{133}$Cs at $880$ nm
• Spontaneous Peierls dimerization and emergent bond order in one-dimensional dipolar gases
• Fluctuation and interaction induced instability of dark solitons in single and binary condensates
• Phase separation of a Bose-Bose mixture: impact of the trap and particle number imbalance
• Finite temperature spin dynamics of a two-dimensional Bose-Bose atomic mixture
• Photoionization loss in simultaneous magneto-optical trapping of Rb and Sr
• Enhanced quantum spin fluctuations in a binary Bose-Einstein condensate
• Strongly interacting fermions in an optical lattice
• Kinetic Model of Trapped Finite Temperature Binary Condensates
• Resonant control of polar molecules in an optical lattice
• Long distance optical conveyor-belt transport of ultracold ${}^{133}$Cs and ${}^{87}$Rb atoms
• Density profiles of two-component Bose-Einstein condensates interacting with a Laguerre-Gaussian Beam
• Trapped Bose-Bose mixtures at finite temperature: a quantum Monte Carlo approach
• Moving binary Bose-Einstein condensates in a weak random potential
• Transconducting transition for a dynamic boundary coupled to several Luttinger liquids
• Tuning of non-paraxial effects of the Laguerre-Gaussian beam interacting with the two-component Bose-Einstein condensates
• Phase transition of ultracold atoms immersed in a BEC vortex lattice
• Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap
• An ultracold, optically trapped mixture of {87}Rb and metastable {4}He atoms
• Equilibrium vortex lattices of a binary rotating atomic Bose-Einstein condensate with unequal atomic masses
• A Non-Equilibrium Kinetic Theory for Trapped Binary Condensates
• Finite temperature ferromagnetic transition in coherently coupled Bose gases
• Quantum Echo in Two-Component Bose-Einstein Condensates
• Production of dual species Bose-Einstein condensates of ${}^{39}$K and ${}^{87}$Rb
• Efficiency for preforming molecules from mixtures of light Fermi and heavy Bose atoms in optical lattices: the strong-coupling-expansion method
• Collective modes in multicomponent condensates with anisotropy
• A distinguishable single excited-impurity in a Bose-Einstein condensate
• A binary mixture of Bose-Einstein-condensates in a double-well potential: Berry phase and two-mode entanglement
• Bifurcations, stability, and mode evolution in segregated condensate mixtures
• Equilibration of a finite temperature binary Bose gas formed by population transfer
• Relaxation of ferromagnetic domains in a disordered lattice in 2D
• Moving Bose mixtures with dipole-dipole interactions
• Controlling Vortex Lattice Structure of Binary Bose-Einstein Condensates via Disorder Induced Vortex Pinning
• Miscibility-Immiscibility transition of strongly interacting bosonic mixtures in optical lattices