Phase Space Dynamics in an Antiferromagnetic Spinor Condensate

Yingmei Liu, Stephen Maxwell, Eite Tiesinga and Paul Lett

National Institute of Standards & Technology, Atomic Physics Division

100 Bureau Drive, Stop 8424, Gaithersburg, MD 20899-8424, USA

 

Spinor condensates of F=1 sodium atoms display rich spin dynamics due to the antiferromagnetic nature of the interactions in this system. We make a continuous and minimally destructive measurement of the spin dynamics on a single evolving spinor condensate. This technique provides a sharp signature of a magnetically tuned boundary in phase space between the oscillating and running phase solutions. In recent experiments we have been able to track and observe the time evolution of atom number fluctuations, which uncovers a novel dissipation-driven boundary in phase space. We also introduce a phenomenological model to describe the observed energy dissipation. This allows us to precisely reveal phase space dynamics during spin mixing in the condensate.

 


CATEGORY: Physics

 

Name:                                  Yingmei Liu

Mentor's name:                    Paul Lett

Division:                              Atomic Physics Division (842)

Laboratory:                          Laser Cooling and Trapping Group

Address:                               Rm. B255, Bldg. 216, Stop 8424

Telephone #:                        (301) 975-8571

FAX #:                                 (301) 975-8272

email:                                    yingmei.liu@nist.gov

Not a Sigma Xi member

 

Name:                                  Stephen Maxwell

Mentor's name:                    Paul Lett

Division:                              Atomic Physics Division (842)

Laboratory:                          Laser Cooling and Trapping Group

Address:                               Rm. B141, Bldg. 216, Stop 8424

Telephone #:                        (301) 975-4950

FAX #:                                 (301) 975-8272

email:                                   stephen.maxwell@nist.gov

Not a Sigma Xi member

 

Name:                                  Eite Tiesinga

Division:                              Atomic Physics Division (842)

Address:                               Rm. A247, Bldg. 221, Stop 8423

Telephone #:                        (301) 975-2284

FAX #:                                 (301) 975-5485

email:                                    eite.tiesinga@nist.gov

Not a Sigma Xi member