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Events in Physics
Title: Tests Of Lorentz And CPT Invariance With Atomic Spin Magnetometers    (Colloquia)
Start Date: 03/07/2011
Time: 4:30 pm
Location: 1 Le Conte Hall
Speaker: Michael Romalis
Affiliation: Professor of Atomic Physics, Princeton University
Contact Person: Sarah Wittmer   (510) 642-3034

Spin-polarized atoms have been used for high sensitivity measurements of magnetic fields as well as other interactions that couple to particle spin. I will describe recent experimental progress in atomic magnetometers and present results of a new search for neutron spin interactions violating local Lorentz invariance. Because of close connection between CPT and Lorentz symmetry, our results also place the most stringent limit on CPT invariance for fermions.