Bunching, clustering, and the buildup of few-body correlations in a quenched unitary Bose gas

Abstract

We study the growth of two- and three-body correlations in an ultracold Bose gas quenched to unitarity. This is encoded in the dynamics of the two- and three-body contacts analyzed in this work. Via a set of relations connecting many-body correlations dynamics with few-body models, signatures of the Efimov effect are mapped out as a function of evolution time at unitarity over a range of atomic densities $n$. For the thermal resonantly interacting Bose gas, we find that atom-bunching leads to an enhanced growth of few-body correlations. These atom-bunching effects also highlight the interplay between few-body correlations that occurs before genuine many-body effects enter on Fermi timescales.

14 pages, 5 figures

References in corpus (14)

• Weakly bound dimers of fermionic atoms
• Generalized Virial Theorem and Pressure Relation for a strongly correlated Fermi gas
• Efimov Physics in Cold Atoms
• Two-dimensional dynamics of expansion of a degenerate Bose gas
• Universal Relations for Identical Bosons from 3-Body Physics
• Two and Three-body Contacts in the Unitary Bose Gas
• Exact Relations for a Strongly-interacting Fermi Gas near a Feshbach Resonance
• Universal Scaling Laws in the Dynamics of a Homogeneous Unitary Bose Gas
• Ground State Properties of Cold Bosonic Atoms At Large Scattering Lengths
• Bound-state signatures in quenched Bose-Einstein condensates
• Monte Carlo Simulations of the Unitary Bose Gas
• Ground-state properties of unitary bosons: from clusters to matter
• Hyperbolic Bloch equations: atom-cluster kinetics of an interacting Bose gas
• Two-Step Production of Resonant Bose-Einstein Condensates

Cited by in corpus (12)

• Bose-Einstein condensation of Efimovian triples in the unitary Bose gas
• Cumulant theory of the unitary Bose gas: Prethermal and Efimovian dynamics
• High Temperature Virial Expansion to Universal Quench Dynamics
• Complex scaling flows in the quench dynamics of interacting particles
• Interferometry of Efimov states in thermal gases by modulated magnetic fields
• Dynamical excitation processes and correlations of three-body two-dimensional mixtures
• Quench dynamics of mass-imbalanced three-body fermionic systems in a spherical trap
• Observation of a Halo Trimer in an Ultracold Bose-Fermi Mixture
• Energetics of three interacting mass-imbalanced bodies in a three-dimensional spherical harmonic trap
• Effects of Efimov states on quench dynamics in a three-boson trapped system
• Quench Dynamics of Thermal Bose Gases Across Wide and Narrow Feshbach
• Arbitrary interaction quench phenomena in harmonically trapped two-body systems