Energetics of three interacting mass-imbalanced bodies in a three-dimensional spherical harmonic trap

Kerin, A. D.; Martin, A. M.

doi:10.48550/arxiv.2204.09205

Cited by 1 publication

(1 citation statement)

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“…Apart from the particle statistics, our study addresses the effect of unequal massed three-body collisions. In 3D gases, it is known that highly mass-imbalanced systems exhibit rich resonant effects [46][47][48][49][50][51], or they favor the observation of multiple successive Efimov states [52][53][54]. Therefore, the inclusion of unequal masses here provides a comprehensive description of the dynamic properties of 2D threebody collisions ranging from light-light-heavy (LLH) to heavy-heavy-light (HHL) systems.…”

Section: Introductionmentioning

confidence: 99%

Dynamical excitation processes and correlations of three-body two-dimensional mixtures

Bougas¹,

Mistakidis²,

Giannakeas³

et al. 2022

Preprint

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A scheme is proposed to dynamically excite distinct eigenstate superpositions in three-body Bose-Fermi mixtures confined in a two-dimensional harmonic trap. The system is initialized in a noninteracting state with a variable spatial extent, and the scattering lengths are subsequently quenched. For spatial widths smaller than the three-body harmonic oscillator length, a superposition of trimers and atom-dimers is dynamically attained, otherwise trap states are predominantly populated. Accordingly, the Tan contacts evince the build-up of short range two-and three-body correlations in the course of the evolution. A larger spatial extent of the initial state leads to a reduction of few-body correlations, endowed however with characteristic peaks at the positions of the avoided-crossings in the energy spectra, thereby signalling the participation of atom-dimers. Our results expose ways to dynamically excite selectively trimers, atom-dimers and trapped few-body states characterized by substantial correlations and likely to be accessible within current experiments.

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