Feshbach resonances in ultracold K(39)

Abstract

We discover several magnetic Feshbach resonances in collisions of ultracold K(39) atoms, by studying atom losses and molecule formation. Accurate determination of the magnetic-field resonance locations allows us to optimize a quantum collision model for potassium isotopes. We employ the model to predict the magnetic-field dependence of scattering lengths and of near-threshold molecular levels. Our findings will be useful to plan future experiments on ultracold potassium atoms and molecules.

7 pages, 6 figures

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Cited by in corpus (134)

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• Observation of an Efimov spectrum in an atomic system
• Ultracold atoms out of equilibrium
• Observation of Quantum Droplets in a Heteronuclear Bosonic Mixture
• An Aharonov-Bohm interferometer for determining Bloch band topology
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• Three-dimensional droplets of swirling superfluids
• Universality of the three-body Efimov parameter at narrow Feshbach resonances
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• Magnetic dipolar interaction in an atomic Bose Einstein condensate interferometer
• Crossing Over from Attractive to Repulsive Interactions in a Tunneling Bosonic Josephson Junction
• Tunable dual-species Bose-Einstein condensates of ${}^{39}$K and ${}^{87}$Rb
• Gray molasses cooling of ${}^{39}$K to a high phase-space density
• Potassium ground state scattering parameters and Born-Oppenheimer potentials from molecular spectroscopy
• Equation of state and self-bound droplet in Rabi-coupled Bose mixtures
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• Universal Scaling Laws in the Dynamics of a Homogeneous Unitary Bose Gas
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• Feshbach resonances in potassium Bose-Bose mixtures
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• Precision Test of the Limits to Universality in Few-Body Physics
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• A dual-species Bose-Einstein condensate with attractive interspecies interactions
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• A new quantum gas apparatus for ultracold mixtures of K and Cs and KCs ground-state molecules
• Direct evaporative cooling of 39K atoms to Bose-Einstein condensation
• Efficient Production of Large 39K Bose-Einstein Condensates
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• Quantum Register of Fermion Pairs
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• Quantum simulations of the early universe
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• Observing the two-dimensional Bose glass in an optical quasicrystal
• An impurity in a heteronuclear two-component Bose mixture
• Elastic Multi-Body Interactions on a Lattice
• All optical cooling of ${}^{39}$K to Bose Einstein condensation
• Spectroscopy of the a^3Σ_u^+ state and the coupling to the X^1Σ_g^+ state of K_2
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• Pinpointing Feshbach Resonances and Testing Efimov Universalities in ${}^{39}$K
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• Observation of Weak Collapse in a Bose-Einstein Condensate
• Direct evaporative cooling of 41K into a Bose-Einstein condensate
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• All-optical production of 7Li Bose-Einstein condensation using Feshbach resonances
• Analog cosmological reheating in an ultracold Bose gas
• Interacting bosonic flux ladders with a synthetic dimension: Ground-state phases and quantum quench dynamics
• Effects of magnetic dipole-dipole interactions in atomic Bose-Einstein condensates with tunable s-wave interactions
• Spatial Bloch oscillations of a quantum gas in a "beat-note" superlattice
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• Cumulant theory of the unitary Bose gas: Prethermal and Efimovian dynamics
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• On the order of BEC transition in weakly interacting gases predicted by mean-field theory
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• Collisional and molecular spectroscopy in an ultracold Bose-Bose mixture
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• Generic transverse stability of kink structures in atomic and optical nonlinear media with competing attractive and repulsive interactions
• Ultracold-atom collisions in atomic waveguides : A two-channel analysis
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• Quadrature interferometry for nonequilibrium ultracold bosons in optical lattices
• Observation of Light-Induced Dipole-Dipole Forces in Ultracold Atomic Gases
• Production of dual species Bose-Einstein condensates of ${}^{39}$K and ${}^{87}$Rb
• Kernel-Function Based Quantum Algorithms for Finite Temperature Quantum Simulation
• Stability and Dynamics of Atom-Molecule Superfluids Near a Narrow Feshbach Resonance
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• Quantum information flow in impurity qubits interacting with Bose-Bose mixtures
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• One-dimensional asymmetrically interacting quantum droplets in Bose-Bose mixtures
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• Interaction control and bright solitons in coherently-coupled Bose-Einstein condensates
• Dilute quantum liquid in a K-Rb Bose mixture
• Quasi-integrability and nonlinear resonances in cold atoms under modulation
• Accelerated Thermalisation of 39K atoms in a Magnetic Trap with Superimposed Optical Potential
• Condensation temperature of strongly interacting ${}^{39}K$ condensates in the mean-field and semi-classical approximations
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