Work

Coupled-pair approach for strongly interacting trapped fermionic atoms

Year: 2014

Type: article

Abstract: We present a coupled-pair approach for studying few-body physics in harmonically trapped ultracold gases. The method is applied to a two-component Fermi system of $N$ particles. A stochastically variational Gaussian expansion method is applied, focusing on optimization of the two-body correlations present in the strongly interacting, or unitary, limit. The ground-state energy of the four-, six- and eight-body problem with equal spin populations is calculated with high accuracy and minimal computational effort. We also calculate the structural properties of these systems and discuss their implication for the many-body ultracold gas and other few-body calculations.

Source: Physical Review A

DOI: 10.1103/physreva.90.023626

Authors: C. J. Bradly, B. C. Mulkerin, A. M. Martin, H. M. Quiney

Institutions: The University of Melbourne, Swinburne University of Technology

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: bronze

Funder: Centre of Excellence for Coherent X-Ray Science, Australian Research Council

OpenAlex ID: W2049060544

FWCI: 0.666

Cites: 35

Cited by: 7

Related to: 10