Friday, April 12, 2013

1304.3299 (P. O. Bugnion et al.)

Ferromagnetic spin correlations in a few-fermion system    [PDF]

P. O. Bugnion, G. J. Conduit
We study the spin correlations of a few two-component fermions in a quasi one-dimensional trap. Exact diagonalization and complementary variational Monte Carlo calculations demonstrate that repulsive interactions between the two species drives ferromagnetic correlations. We show how the ejection probability of an atom provides an experimental probe of the magnetic spin correlations. Finally, studying the energy levels of the excited states reveals that losses to Feshbach molecules are suppressed by the discretization of energy levels when fewer than seven atoms are trapped.
View original:

No comments:

Post a Comment