39-K Bose-Einstein condensate with tunable interactions

Abstract

We produce a Bose-Einstein condensate of 39-K atoms. Condensation of this species with naturally small and negative scattering length is achieved by a combination of sympathetic cooling with 87-Rb and direct evaporation, exploiting the magnetic tuning of both inter- and intra-species interactions at Feshbach resonances. We explore tunability of the self-interactions by studying the expansion and the stability of the condensate. We find that a 39-K condensate is interesting for future experiments requiring a weakly interacting Bose gas.

5 pages

References in corpus (14)

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• Formation of a Matter-Wave Bright Soliton
• Atom interferometry with Bose-Einstein condensates in a double-well potential
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• Resonant control of elastic collisions in an optically trapped Fermi gas of atoms
• Atom interferometry with trapped Fermi gases
• Observation of Feshbach resonances in an ultracold gas of ${}^{52}$Cr
• Feshbach spectroscopy of a K-Rb atomic mixture
• Sensitive measurement of forces at micron scale using Bloch oscillations of ultracold atoms
• Effect of interactions on the localization of a Bose-Einstein condensate in a quasi-periodic lattice
• Sub Shot-Noise Phase Sensitivity with a Bose-Einstein Condensate Mach-Zehnder Interferometer

Cited by in corpus (141)

• Feshbach Resonances in Ultracold Gases
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• Anderson localization of a non-interacting Bose-Einstein condensate
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• Extreme tunability of interactions in a ${}^7$Li Bose-Einstein condensate
• Measurement of the mobility edge for 3D Anderson localization
• Anderson localization in Bose-Einstein condensates
• Atom interferometry with a weakly-interacting Bose Einstein condensate
• Impurity in a Bose-Einstein condensate and the Efimov effect
• Quasiparticle properties of a mobile impurity in a Bose-Einstein condensate
• Observation of subdiffusion of a disordered interacting system
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• Comparing and contrasting nuclei and cold atomic gases
• Phase Coherence and Superfluid-Insulator Transition in a Disordered Bose-Einstein Condensate
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• Spatiotemporal engineering of matter-wave solitons in Bose-Einstein condensates
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• Twisted toroidal vortex-solitons in inhomogeneous media with repulsive nonlinearity
• Magnetic dipolar interaction in an atomic Bose Einstein condensate interferometer
• Gray molasses cooling of ${}^{39}$K to a high phase-space density
• Soliton gyroscopes in media with spatially growing repulsive nonlinearity
• Anderson localization of a Bose-Einstein condensate in a 3D random potential
• Effects of Interactions on the Critical Temperature of a Trapped Bose Gas
• Bose-Einstein condensate in gases of rare atomic species
• Connecting Berezinskii-Kosterlitz-Thouless and BEC phase transitions by tuning interactions in a trapped gas
• Accurate near-threshold model for ultracold KRb dimers from interisotope Feshbach spectroscopy
• Mott Transition for Strongly-Interacting 1D Bosons in a Shallow Periodic Potential
• Integrated coherent matter wave circuits
• Quantum interference-enhanced deep sub-Doppler cooling of 39 K atoms in gray molasses
• Transport of a Bose gas in 1D disordered lattices at the fluid-insulator transition
• Three-dimensional hybrid vortex solitons
• Toolbox for Abelian lattice gauge theories with synthetic matter
• Efimov states near a Feshbach resonance
• Chaos-driven dynamics in spin-orbit coupled atomic gases
• Stability of a BEC with Higher-order Interactions near a Feshbach Resonance
• Modulation of breathers in cigar-shaped Bose-Einstein condensates
• Can a Bose gas be saturated?
• Quantum Gas Mixtures and Dual-Species Atom Interferometry in Space
• Solitons and solitary vortices in "pancake"-shaped Bose-Einstein condensates
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• Bose-Einstein condensation: Twenty years after
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• Efficient Production of Large 39K Bose-Einstein Condensates
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• Single-atom aided probe of the decoherence of a Bose-Einstein condensate
• Mach-Zehnder interferometry with interacting trapped Bose-Einstein condensates
• Observation of interspecies Feshbach resonances in an ultracold ${}^{39}$K-${}^{133}$Cs mixture and refinement of interaction potentials
• A simple model for interactions and corrections to the Gross-Pitaevskii Equation
• Miniaturized lab system for future cold atom experiments in microgravity
• Quantum sensing using imbalanced counter-rotating Bose--Einstein condensate modes
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• Cold three-body collisions in hydrogen-hydrogen-alkali atomic system
• Spectroscopy of the a^3Σ_u^+ state and the coupling to the X^1Σ_g^+ state of K_2
• Pinpointing Feshbach Resonances and Testing Efimov Universalities in ${}^{39}$K
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• Superfluid to Bose-glass transition of hard core bosons in one-dimensional incommensurate optical lattice
• The mixing-demixing phase diagram of ultracold heteronuclear mixtures in a ring trimer
• Observation of Weak Collapse in a Bose-Einstein Condensate
• Correlation function of weakly interacting bosons in a disordered lattice
• Effects of magnetic dipole-dipole interactions in atomic Bose-Einstein condensates with tunable s-wave interactions
• Direct evaporative cooling of 41K into a Bose-Einstein condensate
• Unidimensional reduction of the 3D Gross-Pitaevskii equation with two- and three-body interactions
• Bright and Dark Solitons in a Periodically Attractive and Expulsive Potential with Nonlinearities Modulated in Space and Time
• Feshbach resonances, molecular bound states and prospects of ultracold molecule formation in mixtures of ultracold K and Cs
• Feshbach resonances and weakly bound molecular states of boson-boson and boson-fermion NaK pairs
• Localization of collisionally inhomogeneous condensates in a bichromatic optical lattice
• Lattice modulation spectroscopy of strongly interacting bosons in disordered and quasi-periodic optical lattices
• Cavity-induced switching between localized and extended states in a non-interacting Bose-Einstein condensate
• Bose-Einstein condensation and critical behavior of two-component bosonic gases
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• Phonon resonances in atomic currents through Bose-Fermi mixtures in optical lattices
• Finite-temperature effects on interacting bosonic 1D systems in disordered lattices
• Phase separation of binary condensates in harmonic and lattice potentials
• Correlated dynamics of fermionic impurities induced by the counterflow of an ensemble of fermions
• Coreless vortex dipoles and bubbles in phase-separated binary condensates
• Generation of high-purity, low-temperature samples of ${}^{39}$K for applications in metrology
• Domain walls in fractional media
• Coherent single atom shuttle between two Bose-Einstein condensates
• Quenching dynamics of the bright solitons and other localized states in spin-orbit coupled Bose-Einstein condensates
• Stability of low-dimensional multicomponent Bose gases
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• Nonlinear Lattice Waves in Random Potentials
• Anomalous Bloch oscillations in one dimensional parity-breaking periodic potentials
• Phase diagram and multicritical behaviors of mixtures of 3D bosonic gases
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• Dynamically emergent correlations in bosons via quantum resetting
• Dynamical instability and dispersion management of an attractive condensate in an optical lattice
• Mean-field dynamics to negative absolute temperatures in the Bose-Hubbard model
• Modeling the transport of interacting matter-waves in disorder by a non-linear diffusion equation
• Scattering by an oscillating barrier: quantum, classical, and semiclassical comparison
• Influence of Rashba spin-orbit and Rabi couplings on the miscibility and ground state phases of binary Bose-Einstein condensates
• A high-flux source system for matter-wave interferometry exploiting tunable interactions
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• Hyperfine dependent atom-molecule loss analyzed by the analytic solution of few-body loss equations
• Pulsating instability of a Bose-Einstein condensate in an optical lattice
• Energy-level inversion for vortex states in spin-orbit coupled Bose-Einstein condensates
• Rapid generation of all-optical ${}^{39}$K Bose-Einstein condensates using a low-field Feshbach resonance
• Make Slow Fast -- how to speed up interacting disordered matter
• Mesoscopic Transport and Interferometry with Wavepackets of Ultracold atoms: Effects of Quantum Coherence and Interactions
• Matter-wave collimation to picokelvin energies with scattering length and potential shape control
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• Exploring quantum phase slips in 1D bosonic systems
• Quantum fluctuations and condensate fraction during the time-of-flight expansion
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• Controlling the group velocity of colliding atomic Bose-Einstein condensates with Feshbach resonances
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• Bose-Einstein condensates in disordered potentials
• Quantum Nucleation and Macroscopic Quantum Tunneling in Cold-Atom Boson-Fermion Mixtures
• Formation of ultracold ${}^{39}$K${}^{133}$Cs Feshbach molecules
• New Frontiers in Multidimensional Self-Trapping of Nonlinear Fields and Matter
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• Number and spin densities in the ground state of a trapped mixture of two pseudospin-1/2 Bose gases with interspecies spin-exchange interaction
• Computing ground states of Bose-Einstein Condensates with higher order interaction via a regularized density function formulation
• Study of Bose-Einstein condensation using generalized canonical partition function
• Accelerated Thermalisation of 39K atoms in a Magnetic Trap with Superimposed Optical Potential
• Ferromagnetic phase in the polarized two-species bosonic Hubbard Model
• Composite fermion basis for M-component Bose gases
• One-dimensional matter waves as a multi-state bit
• Tweezer interferometry with NOON states