Association of Efimov trimers from a three-atom continuum

Abstract

We develop an experimental technique for rf-association of Efimov trimers from three-atoms continuum. We apply it to probe the lowest accessible Efimov energy level in bosonic lithium in the region where strong deviations from the universal behavior are expected, and provide quantitative study of this effect. Position of the Efimov resonance at the atom-dimer threshold, measured with a different experimental technique, concurs with the rf-association results.

5 pages, 4 figures

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• General relations for quantum gases in two and three dimensions. II. Bosons and mixtures
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• Microscopic Origin and Universality Classes of the Efimov Three-Body Parameter
• Halos and related structures
• Finite range corrections near a Feshbach resonance and their role in the Efimov effect
• Few-body physics in resonantly interacting ultracold quantum gases
• Physical Origin of the Universal Three-body Parameter in Atomic Efimov Physics
• Universal Scaling Laws in the Dynamics of a Homogeneous Unitary Bose Gas
• Observation of Efimov molecules created from a resonantly interacting Bose gas
• Correlations imposed by the unitary limit between few-nucleon systems, nuclear matter and neutron stars
• Universal three-body physics in ultracold KRb mixtures
• Radiative capture reactions in lattice effective field theory
• Universality and scaling in the $N$-body sector of Efimov physics
• Evidence for association of triatomic molecule in ultracold ${}^{23}$Na${}^{40}$K and ${}^{40}$K mixture
• Efimov Physics and Connections to Nuclear Physics
• Universal nature and finite-range corrections in elastic atom-dimer scattering below the dimer breakup threshold
• Universal three-body recombination and Efimov resonances in an ultracold Li-Cs mixture
• Borromean ground state of fermions in two dimensions
• Crossover trimers connecting continuous and discrete scaling regimes
• Efimov-van-der-Waals universality for ultracold atoms with positive scattering lengths
• Universal three-body parameter in ultracold 4He*
• Looking for "avalanche-mechanism" loss at an atom-molecule Efimov resonance
• Universality in Efimov associated tetramers in 4He
• Efimov trimers under strong confinement
• Three-body recombination of two-component cold atomic gases into deep dimers in an optical model
• Efimov physics with $1/2$ spin-isospin fermions
• Finite-range effects in Efimov physics beyond the separable approximation
• Weakly bound states of two- and three-boson systems in the crossover from two to three dimension
• Efimov three-body states on top of a Fermi sea
• Matching universal behavior with potential models
• Squeezing the Efimov effect
• Universal range corrections to the Efimov trimer for a class of paths to the unitary limit
• Saturation properties of helium drops from a Leading Order description
• From few to many bosons inside the unitary window: a transition between universal to non-universal behavior
• Association of Atoms into Universal Dimers using an Oscillating Magnetic Field
• Recombination rates from potential models close to the unitary limit
• Three-body forces and Efimov physics in nuclei and atoms
• Dynamical formation of the unitary Bose gas
• Reshaped Three-Body Interactions and the Observation of an Efimov State in the Continuum
• Probing the Efimov discrete scaling in atom-molecule collision
• Three-body recombination at finite energy within an optical model
• A coherent superposition of Feshbach dimers and Efimov trimers
• Efimov scenario for overlapping narrow Feshbach resonances
• Van der Waals universality in homonuclear atom-dimer elastic collisions
• Many Bosons in a Narrow Magnetic Feshbach Resonance
• Few-body physics of ultracold atoms and molecules with long-range interactions
• The Avalanche Mechanism for Atom Loss near an Atom-Dimer Efimov Resonance
• Harmonic and Subharmonic Association and Dissociation of Universal Dimers in a Thermal Gas
• Universality of Efimov states in highly mass-imbalanced cold-atom mixtures with van der Waals and dipole interactions
• Non-adiabatic molecular association in thermal gases driven by radio-frequency pulses
• Avalanche Mechanism for the Enhanced Loss of Ultracold Atoms
• Multipole Analysis of Radio-Frequency Reactions in Ultra-Cold Atoms
• Atom Loss Resonances in a Bose-Einstein Condensate
• Observation of a Halo Trimer in an Ultracold Bose-Fermi Mixture
• Efimov states in Li-Cs mixtures within a minimal model
• Photo Reactions with Universal Trimers
• Log-Periodic Oscillations in the Photo Response of Efimov Trimers
• Density effects on the interferometry of Efimov states by modulating magnetic fields
• Universal spectrum of isolated three-body resonances
• Photoassociation of Universal Efimov Trimers
• Shallow Trimers of Two Identical Fermions and One Particle in Resonant Regimes
• Efimov energy level rebounding off the atom-dimer continuum