Cold fermionic atoms in two-dimensional traps: Pairing versus Hund's rule

M. Rontani, J. R. Armstrong, Y. Yu, S. Åberg, S. M. Reimann

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

The microscopic properties of few interacting cold fermionic atoms confined in a two-dimensional (2D) harmonic trap are studied by numerical diagonalization. For repulsive interactions, a strong shell structure dominates, with Hund's rule acting at its extreme for the midshell configurations. In the attractive case, odd-even oscillations due to pairing occur simultaneously with deformations in the internal structure of the ground states, as seen from pair correlation functions.

Original languageEnglish (US)
Article number060401
JournalPhysical Review Letters
Volume102
Issue number6
DOIs
StatePublished - Feb 9 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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