A compact experimental machine for studying tunable Bose-Bose superfluid mixtures

Abstract

We present a compact and versatile experimental system for producing Bose-Bose superfluid mixtures composed of sodium and potassium atoms. The compact design combines the necessary ultra-high vacuum enviroment for ultracold atom experiments with efficient atomic fluxes by using two-dimensional magneto-optical traps as independent source of atoms. We demonstrate the performance of this new machine by producing a Bose-Einstein condensate of ${}^{23}$Na with $\sim 1\times 10^6$atoms. The tunability of Na-K bosonic mixtures is particularly interesting for studies regarding the nucleation of vortices and quantum turbulence. In this direction, the large optical access of the science chamber along the vertical direction provides the conditions to implement high resolution optical setups for imaging and rotating the condensate with a stirring beam. We show the nucleation of a vortex lattice with up to 14 vortices in the ${}^{23}$Na BEC, attesting the efficiency of the experimental apparatus in studying the dynamics of vortices.

References in corpus (47)

• Feshbach Resonances in Ultracold Gases
• Vortex formation in a stirred Bose-Einstein condensate
• Spin domains in ground state spinor Bose-Einstein condensates
• The dynamics of component separation in a binary mixture of Bose-Einstein condensates
• Bose-Einstein Condensation of Erbium
• Quantum Mechanical Stabilization of a Collapsing Bose-Bose Mixture
• Quantum liquid droplets in a mixture of Bose-Einstein condensates
• Observing the Rosensweig instability of a quantum ferrofluid
• Self-bound quantum droplets in atomic mixtures
• Ultracold Dipolar Gas of Fermionic ${}^{23}$Na${}^{40}$K Molecules in their Absolute Ground State
• Creation of ultracold ${}^{87}$RbCs molecules in the rovibrational ground state
• Two-species mixture of quantum degenerate Bose and Fermi gases
• Bright soliton to quantum droplet transition in a mixture of Bose-Einstein condensates
• A two atomic species superfluid
• Vortex Nucleation in a Stirred Bose-Einstein Condensate
• Phase diagram of two-component bosons on an optical lattice
• A Mixture of Bose and Fermi Superfluids
• Quantum degenerate two-species Fermi-Fermi mixture coexisting with a Bose-Einstein condensate
• Vortices in multicomponent Bose-Einstein condensates
• Dual-Species Bose-Einstein Condensate of ${}^{87}$Rb and ${}^{133}$Cs
• Persistent currents in spinor condensates
• Vortex phase diagram in rotating two-component Bose-Einstein condensates
• Tuning of heteronuclear interactions in a quantum-degenerate Fermi-Bose mixture
• Quantum turbulence in trapped atomic Bose-Einstein condensates
• Quantum-degenerate mixture of fermionic lithium and bosonic rubidium gases
• Quantum degenerate mixtures of strontium and rubidium atoms
• Superfluid-insulator transitions of two-species Bosons in an optical lattice
• Visualization study of counterflow in superfluid helium-4 using metastable helium molecules
• Phase Separation and Dynamics of two-component Bose-Einstein condensates
• Self-trapping of impurities in Bose-Einstein condensates: Strong attractive and repulsive coupling
• A classification of the ground states and topological defects in a rotating two-component Bose-Einstein condensate
• Sub-Doppler laser cooling of fermionic 40K atoms in three-dimensional gray optical molasses
• Tunable dual-species Bose-Einstein condensates of ${}^{39}$K and ${}^{87}$Rb
• Binary Quantum Turbulence Arising from Countersuperflow Instability in Two-Component Bose-Einstein Condensates
• Gray molasses cooling of ${}^{39}$K to a high phase-space density
• Exotic vortex lattices in two-species Bose-Einstein condensates
• Mixtures of Bose Gases Confined in a Ring Potential
• A compact high-flux source of cold sodium atoms
• Intense slow beams of bosonic potassium isotopes
• Feshbach spectroscopy and dual-species Bose-Einstein condensation of ${}^{23}\mathrm{Na}-$${}^{39}\mathrm{K}$ mixtures
• Sub-Doppler cooling of sodium atoms in gray molasses
• Persistent currents in a bosonic mixture in the ring geometry
• Rubidium-87 Bose-Einstein condensate in an optically plugged quadrupole trap
• Fast production of large 23Na Bose-Einstein condensates in an optically plugged magnetic quadrupole trap
• Production of large ${}^{41}$K Bose-Einstein condensates using D1 gray molasses
• Feshbach resonances and weakly bound molecular states of boson-boson and boson-fermion NaK pairs
• Isotropic vortex tangles in trapped atomic Bose-Einstein condensates via laser stirring

Cited by in corpus (11)

• Splitting of singly and doubly quantized composite vortices in two-component Bose-Einstein condensates
• Decay of two-dimensional quantum turbulence in binary Bose-Einstein condensates
• Quantum turbulence in Bose-Einstein condensates: present status and new challenges ahead
• Massive-vortex realization of a Bosonic Josephson Junction
• On continuous loading of a U-magneto-optical trap (U-MOT) on atom-chip in ultra high vacuum
• Fast loading of a cold mixture of Sodium and Potassium atoms from compact and versatile cold atomic beam sources
• Miscibility regimes in a ${}^{23}$Na-${}^{39}$K quantum mixture
• Stochastic dynamics of a few sodium atoms in a cold potassium cloud
• Rotational states of an asymmetric vortex pair with mass imbalance in binary condensates
• Stability of normal quantum-fluid mixtures
• Shift of the Bose-Einstein condensation transition in the presence of a second atomic species