Ferromagnetic spin correlations in a few-fermion system

Autor:	Bugnion, P. O., Conduit, G. J.
Rok vydání:	2013
Předmět:	Condensed Matter - Quantum Gases Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Strongly Correlated Electrons
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.87.060502
Popis:	We study the spin correlations of a few fermions in a quasi one-dimensional trap. Exact diagonalization calculations demonstrate that repulsive interactions between the two species drives ferromagnetic correlations. The ejection probability of an atom provides an experimental probe of the spin correlations. With more than five atoms trapped, the system approaches the itinerant Stoner limit. Losses to Feshbach molecules are suppressed by the discretization of energy levels when fewer than seven atoms are trapped.
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1304.3299 Zobrazit plný text záznamu View this record from Arxiv