Observation of a Halo Trimer in an Ultracold Bose-Fermi Mixture
arXiv:2411.04820 · doi:10.1103/flty-9d72
Abstract
The quantum mechanics of three interacting particles gives rise to interesting universal phenomena, such as the staircase of Efimov trimers predicted in the context of nuclear physics and observed in ultracold gases. Here, we observe a novel type of halo trimer using radiofrequency spectroscopy in an ultracold mixture of Na and K atoms. The trimers consist of two light bosons and one heavy fermion, and have the structure of a Feshbach dimer weakly bound to one additional boson. We find that the trimer peak closely follows the dimer resonance over the entire range of explored interaction strengths across an order of magnitude variation of the dimer energy, as reproduced by our theoretical analysis. The presence of this halo trimer is of direct relevance for many-body physics in ultracold mixtures and the association of ultracold molecules.
arXiv comment9+3 pages, 7+1 figures
References in corpus (53)
- Evidence for Efimov quantum states in an ultracold gas of cesium atoms
- Efimov Physics: a review
- Observation of Attractive and Repulsive Polarons in a Bose-Einstein Condensate
- Bose polarons in the strongly interacting regime
- Observation of an Efimov spectrum in an atomic system
- A Mixture of Bose and Fermi Superfluids
- Universal few-body physics and cluster formation
- Observation of an Efimov-like resonance in ultracold atom-dimer scattering
- Observation of the Efimov state of the helium trimer
- Ultracold Fermionic Feshbach Molecules of NaK
- Bose polarons near quantum criticality
- Observation of Efimov Resonances in a Mixture with Extreme Mass Imbalance
- Impurity in a Bose-Einstein condensate and the Efimov effect
- Origin of the Three-body Parameter Universality in Efimov Physics
- Geometric scaling of Efimov states in a - mixture
- Radio Frequency Association of Efimov Trimers
- Observation of the Second Triatomic Resonance in Efimov's Scenario
- Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium
- Non-equilibrium quantum dynamics and formation of the Bose polaron
- The structure of the atomic helium trimers: Halos and Efimov states
- Measurement of an Efimov trimer binding energy in a three-component mixture of 6Li
- Two and Three-body Contacts in the Unitary Bose Gas
- Universal three-body parameter in heteronuclear atomic systems
- Radio-Frequency Transitions on Weakly-Bound Ultracold Molecules
- Association of Efimov trimers from a three-atom continuum
- Visualizing Efimov Correlations in the Bose Polaron
- Universality of an impurity in a Bose-Einstein condensate
- Testing universality of Efimov physics across broad and narrow Feshbach resonances
- Supplementary information to "Efimov-driven phase transitions of the unitary Bose gas"
- Degenerate fermion gas heating by hole creation
- Efimov-driven phase transitions of the unitary Bose gas
- Induced -wave pairing in Bose-Fermi mixtures
- Observation of Efimov molecules created from a resonantly interacting Bose gas
- Numerical study of three-body recombination for systems with many bound states
- Phase separation and collapse in Bose-Fermi mixtures with a Feshbach resonance
- Quantum behavior of a heavy impurity strongly coupled to a Bose gas
- From Efimov Physics to the Bose Polaron using Gaussian States
- Ground-state properties of unitary bosons: from clusters to matter
- Bose-Einstein condensation of Efimovian triples in the unitary Bose gas
- Impurity-induced multi-body resonances in a Bose gas
- Probing few-body nuclear dynamics via 3H and 3He (e,e'p)pn cross-section measurements
- Suppression of Unitary Three-body Loss in a Degenerate Bose-Fermi Mixture
- Sound propagation in a Bose-Fermi mixture: from weak to strong interactions
- Feshbach resonances in mixtures and refined molecular potentials for the NaK molecule
- Bunching, clustering, and the buildup of few-body correlations in a quenched unitary Bose gas
- Phase diagram for strong-coupling Bose polarons
- Reshaped Three-Body Interactions and the Observation of an Efimov State in the Continuum
- Few-body states of bosons interacting with a heavy quantum impurity
- Strongly interacting Bose-Fermi mixture: mediated interaction, phase diagram and sound propagation
- A coherent superposition of Feshbach dimers and Efimov trimers
- Emergent inflation of the Efimov spectrum under three-body spin-exchange interactions
- Three-body rf association of Efimov trimers
- Mass Ratio Dependence of Three-Body Resonance Lifetimes in 1D and 3D