Radio Frequency Association of Efimov Trimers

Abstract

The quantum-mechanical three-body problem is one of the fundamental challenges of few-body physics. When the two-body interactions become resonant, an infinite series of universal three-body bound states is predicted to occur, whose properties are determined by the strength of the two-body interactions. We report on the association and direct observation of a trimer state consisting of three distinguishable fermions using radio-frequency (RF) spectroscopy. The measurements of its binding energy are consistent with theoretical predictions which include non-universal corrections.

12 pages, 6 figures

References in corpus (9)

• Observation of Phase Separation in a Strongly-Interacting Imbalanced Fermi Gas
• Observation of an Efimov spectrum in an atomic system
• Collisional stability of a three-component degenerate Fermi gas
• Three-body recombination in a three-state Fermi gas with widely tunable interactions
• Observation of universality in ultracold 7Li three-body recombination
• Observation of an Efimov-like resonance in ultracold atom-dimer scattering
• Evidence for Universal Four-Body States Tied to an Efimov Trimer
• Observation of heteronuclear atomic Efimov resonances
• Atom-Dimer Scattering in a Three-Component Fermi Gas

Cited by in corpus (10)

• Three-body forces: From cold atoms to nuclei
• Excitation spectra and rf-response near the polaron-to-molecule transition from the functional renormalization group
• Two-dimensional dynamics of expansion of a degenerate Bose gas
• Comparing and contrasting nuclei and cold atomic gases
• Coherent Interaction of a Single Fermion with a Small Bosonic Field
• Single-Particle Momentum Distribution of an Efimov trimer
• The Efimov effect in lithium 6
• Efimov physics from a renormalization group perspective
• Mass-imbalanced Three-Body Systems in Two Dimensions
• Finite Range Effects in Energies and Recombination Rates of Three Identical Bosons