Eur. Phys. J. D 65, 91-98 (2011)
https://doi.org/10.1140/epjd/e2011-20081-8

Regular Article

Collision of one dimensional (1D) spin polarized Fermi gases in an optical lattice

¹ Aalto University School of Science, P.O. Box 15100, 00076 Aalto, Finland
² Low Temperature Laboratory, Aalto University, P.O. Box 15100, 00076 Aalto, Finland
³ Kavli Institute for Theoretical Physics, University of California, Santa Barbara, 93106-4030 California, USA

^a e-mail: paivi.torma@aalto.fi

Received: 31 January 2011
Received in final form: 6 May 2011
Published online: 28 June 2011

Abstract

In this work we analyze the dynamical behavior of the collision between two clouds of fermionic atoms with opposite spin polarization. By means of the time-evolving block decimation (TEBD) numerical method, we simulate the collision of two one-dimensional clouds in a lattice. There is a symmetry in the collision behaviour between the attractive and repulsive interactions. We analyze the pair formation dynamics in the collision region, providing a quantitative analysis of the pair formation mechanism in terms of a simple two-site model.