Color-charge separation in trapped SU3 fermionic atoms - Condensed Matter > Quantum GasesReportar como inadecuado




Color-charge separation in trapped SU3 fermionic atoms - Condensed Matter > Quantum Gases - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: Cold fermionic atoms with three different hyperfine states withSU3 symmetry confined in one-dimensional optical lattices show color-chargeseparation, generalizing the conventional spin charge separation forinteracting SU2 fermions in one dimension. Through time-dependent DMRGsimulations, we explore the features of this phenomenon for a generalized SU3Hubbard Hamiltonian. In our numerical simulations of finite size systems, weobserve different velocities of the charge and color degrees of freedom when aGaussian wave packet or a charge color density response to a localperturbation is evolved. The differences between attractive and repulsiveinteractions are explored and we note that neither a small anisotropy of theinteraction, breaking the SU3 symmetry, nor the filling impedes the basicobservation of these effects.



Autor: Tobias Ulbricht, Rafael A. Molina, Ronny Thomale, Peter Schmitteckert

Fuente: https://arxiv.org/







Documentos relacionados