Slightly imbalanced system of a few attractive fermions in a one-dimensional harmonic trap

Abstract

The ground-state properties of the two-flavored mixture of a few attractive fermions confined in a one-dimensional harmonic trap is studied. It is shown that for slightly imbalanced system the pairing between fermions of opposite spins has completely different features that in the balanced case. The fraction of correlated pairs is suppressed by the presence of additional particle and another uncorrelated two-body orbital dominates in the ground-state of the system.

In Honor of Professor Maciej Lewenstein on his 60th birthday

References in corpus (5)

• Pairing in a system of a few attractive fermions in a harmonic trap
• Pairing of few Fermi atoms in one dimension
• A variational approach to repulsively interacting three-fermion systems in a one-dimensional harmonic trap
• Multicomponent Strongly Interacting Few-Fermion Systems in One Dimension
• Temperature-dependence of small harmonically trapped atom systems with Bose, Fermi and Boltzmann statistics

Cited by in corpus (8)

• One-dimensional mixtures of several ultracold atoms: a review
• Few strongly interacting ultracold fermions in one-dimensional traps of different shapes
• Few-body precursor of the Higgs mode in a superfluid Fermi gas
• Four fermions in a one-dimensional harmonic trap: Accuracy of a variational-ansatz approach
• Diffusion in a system of a few distinguishable fermions in a one-dimensional double-well potential
• Ground-state energy, density profiles, and momentum distribution of attractively interacting 1D Fermi gases with hard-wall boundaries: a Monte Carlo study
• Few-body perspective on fermionic pairing in one spatial dimension
• Bose-like few-fermion systems