Molecular excited state in the interaction quench dynamics of two different atoms in a two-dimensional anisotropic trap
arXiv:2504.07893 · doi:10.1140/epjp/s13360-024-04864-2
Abstract
We explore the interaction quench dynamics of two atoms with different masses and subject to different trapping potentials. Notably, under such anisotropic conditions, the nonequilibrium dynamics can lead to the occupation of molecular excited states. We consider cases of quenching from attractive to repulsive interaction and vice versa, analyzing the impact of the pre- and postquench states. The analysis of overlap integrals for the both states reveals a significant contribution from the molecular excited state. Moreover, the overlap with the prequench states might serve as an indicator of when this excited state may emerge. Additionally, we calculate the energy spectrum for the lowest levels in the both isotropic and anisotropic harmonic traps. Throughout our study, we use a Gaussian-shaped finite-range interaction potential.
This preprint has not undergone peer review (when applicable) or any post-submission improvements or corrections. The Version of Record of this article is published in The European Physical Journal Plus, and is available online at https://doi.org/10.1140/epjp/s13360-024-04864-2
References in corpus (30)
- Many-Body Physics with Ultracold Gases
- Atomic Scattering in Presence of an External Confinement and a Gas of Impenetrable Bosons
- Deterministic Preparation of a Tunable Few-Fermion System
- Ultracold atoms out of equilibrium
- Fermionization of two distinguishable fermions
- Confinement-Induced Resonances in Low-Dimensional Quantum Systems
- Analytical solutions for the dynamics of two trapped interacting ultracold atoms
- Observation of Cooper Pairs in a Mesoscopic 2D Fermi Gas
- Observing the emergence of a quantum phase transition -- shell by shell
- Coherent molecule formation in anharmonic potentials near confinement-induced resonances
- Two trapped particles interacting by a finite-ranged two-body potential in two spatial dimensions
- Confinement induced resonances in anharmonic waveguides
- Quantum dynamics of resonant molecule formation in waveguides
- Tunneling dynamics of two interacting one-dimensional particles
- Theory of inelastic confinement-induced resonances due to the coupling of center-of-mass and relative motion
- Few-body correlations in two-dimensional Bose and Fermi ultracold mixtures
- Tunneling of two bosonic atoms from a one-dimensional anharmonic trap
- Analytical treatment of the interaction quench dynamics of two bosons in a two-dimensional harmonic trap
- Anisotropic quantum scattering in two dimensions
- Stationary and dynamical properties of two harmonically trapped bosons in the crossover from two dimensions to one
- Universality of internal correlations of strongly interacting p-wave fermions in one-dimensional geometry
- Exactly solvable model of two interacting Rydberg-dressed atoms confined in a two-dimensional harmonic trap
- Description of ultracold atoms in a one-dimensional geometry of a harmonic trap with a realistic interaction
- Analytical solution for the spectrum of two ultracold atoms in a completely anisotropic confinement
- Magnetic properties and quench dynamics of two interacting ultracold molecules in a trap
- Dynamical excitation processes and correlations of three-body two-dimensional mixtures
- Two Rydberg-dressed atoms escaping from an open well
- Quench dynamics of two interacting atoms in a one-dimensional anharmonic trap
- Sudden quench of harmonically trapped mass-imbalanced fermions
- On the Exponential Decay of Strongly Interacting Cold Atoms from a Double-Well Potential