2019 CAP Congress / Congrès de l'ACP 2019

45 - Modifying spin transport in a one-dimensional nondegenerate ultracold gas

4 Jun 2019, 17:05

2m

SWH 9082 + AQ South-East Corner / coin sud-est (Simon Fraser University)

Poster not-in-competition (Graduate Student) / Affiche non-compétitive (Étudiant(e) du 2e ou 3e cycle) Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC) DAMOPC Poster Session & Student Poster Competition Finals (26) | Session d'affiches DPAMPC et finales du concours d'affiches étudiantes (26)

Speaker

Sean Graham (Simon Fraser University)

Description

We study the transport of spin within a weakly-interacting gas of $^{87}$Rb atoms above quantum degeneracy. Spin transport can be modified by tuning coherent spin-rotating interactions with a small effective magnetic field that varies the local Larmor precession. Previously, we have shown that specific linear effective magnetic fields stabilize spin domains [1]. Further manipulation of the effective magnetic field is achieved by utilizing a digital micromirror device. This finer control of the effective magnetic field can lead to longer lived stable spin domains, multiple stable spin domains, and dynamic control of the orientation of a spin domain. We present the experimental details of including a digital micromirror device to our system and our progress on further modifying spin transport.
[1] S. D. Graham, D. Niroomand, R. J. Ragan, and J. M. McGuirk, Phys. Rev. A 97, 051603(R) (2018)