Emergence of Wigner molecules in one-dimensional systems of repulsive fermions under harmonic confinement

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A Bethe-Ansatz spin-density functional approach is developed to evaluate the ground-state density profile in a system of repulsively interacting spin-1/2 fermions inside a quasi-one-dimensional harmonic well. The approach allows for the formation of antiferromagnetic quasi-order with increasing coupling strength and reproduces with high accuracy the exact solution that is available for the two-fermion system.
3 pages, 2 figures, submitted

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Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/121640

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0611699
 http://arxiv.org/abs/cond-mat/0611699
 Phys. Rev. A 75, 015602 (2007)
 doi:10.1103/PhysRevA.75.015602

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arXiv