Work

Few interacting fermions in a one-dimensional harmonic trap

Year: 2013

Type: article

Abstract: We study spin-1/2 fermions, interacting via a two-body contact potential, in a one-dimensional harmonic trap. Applying exact diagonalization, we investigate their behavior at finite interaction strength and discuss the role of the ground-state degeneracy which occurs for sufficiently strong repulsive interaction. Even low temperature or a completely depolarizing channel may then dramatically influence the system's behavior. We calculate level occupation numbers as signatures of thermalization, and we discuss the mechanisms to break the degeneracy.

Source: Physical Review A

DOI: 10.1103/physreva.88.033607

Authors: Tomasz Sowiński, Tobias Grass, Omjyoti Dutta, Maciej Lewenstein

Institutions: Institute of Photonic Sciences, Institute of Physics, Polish Academy of Sciences, Jagiellonian University, Institució Catalana de Recerca i Estudis Avançats

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2091187331

FWCI: 7.172

Cites: 20

Cited by: 87

Related to: 10