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arXiv · 0806.3780

Cold Fermionic Atoms in Two-Dimensional Traps -- Pairing versus Hund's Rule

M. Rontani·J. R. Armstrong·Y. Yu·S. Åberg·S. M. Reimann
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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 mid-shell 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.

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M. Rontani, J. R. Armstrong, Y. Yu, S. Åberg, S. M. Reimann. 2009-02-10. Cold Fermionic Atoms in Two-Dimensional Traps -- Pairing versus Hund's Rule. https://doi.org/10.1103/physrevlett.102.060401

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