Cindy Regal (JILA)

I will discuss experiments with atoms in optical tweezers in which we use time-of-flight imaging to demonstrate full tomography of a non-classical motional state.  By combining time-of-flight imaging with coherent evolution of an atom in the optical tweezer, we are able to access arbitrary quadratures in phase space without relying on coupling to a spin degree of freedom.  To create non-classical motional states, we using tunneling in the potential landscape of optical tweezers, and our tomography both demonstrates Wigner function negativity and assesses coherence of non-stationary states.  We are motivated to explore this tomography method for its applicability to other neutral particles, such as large-mass dielectric spheres.  I will also provide a brief description of our broader optical tweezer work focused on studying light-assisted collisions and on extending atom lifetimes with a new cryogenic optical tweezer array apparatus.

Research interests:  atomic physics, optomechanics

Grad student 10 minute talk: Tina Na Narong (Hollberg Lab)