RSS icon
Twitter icon
Facebook icon
Vimeo icon
YouTube icon

Optical Feshbach Resonances and Coherent Photoassociation in a Strontium BEC

August 5, 2013 - 10:30am
Tom Killian
Rice University

The divalent electronic structure of alkaline-earth metal atoms such as strontium gives rise to metastable, excited triplet levels and narrow intercombination transitions. These have been exploited for optical clocks, powerful laser cooling techniques that are critical for achieving quantum degeneracy in strontium, and proposals for quantum information architectures and studies of novel magnetism. Metastable excited electronic states also give rise to narrow photoassociation (PA) transitions that differ in many ways from traditional PA with broad, electric-dipole-allowed transitions. In this talk, we will discuss the use of narrow-line PA near the ^1S_0-^3P_1 intercombination transition for two experiments with ^88Sr Bose-Einstein condensates. The first demonstrates the control of condensate collapse and expansion using an optical Feshbach resonance (OFR). The second accesses a regime of coherent PA in which we observe atom-molecule Rabi oscillations and create condensates of excited-state molecules.

2115 Computer and Space Sciences
College Park, MD 20742

Subscribe to A Quantum Bit 

Quantum physics began with revolutionary discoveries in the early twentieth century and continues to be central in today’s physics research. Learn about quantum physics, bit by bit. From definitions to the latest research, this is your portal. Subscribe to receive regular emails from the quantum world. Previous Issues...

Sign Up Now

Sign up to receive A Quantum Bit in your email!

 Have an idea for A Quantum Bit? Submit your suggestions to