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

Abstract

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 non-interacting 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.

arXiv comment18 pages, 10 figures

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Cited by in corpus (4)

• Quench dynamics of mass-imbalanced three-body fermionic systems in a spherical trap
• Effects of Efimov states on quench dynamics in a three-boson trapped system
• Molecular excited state in the interaction quench dynamics of two different atoms in a two-dimensional anisotropic trap
• Arbitrary interaction quench phenomena in harmonically trapped two-body systems