Wednesday, March 8th: Harnessing quantum effects for precision acceleration sensing

Event Date: 

Wednesday, March 8, 2017 - 3:30pm

Event Location: 

  • 1605 Elings Hall (CNSI)

Paul Hamilton

Modern AMO techniques allow nearly complete quantum control of trapped atoms and ions.  There is an increasing push to use these systems as precision sensors to explore other areas of interesting physics.  I will discuss two such experiments in development at UCLA.  The first uses the quantum mechanical phenomena of Bloch oscillations combined with cavity QED to convert a force on atoms into an oscillating optical signal.  Beyond its use as a compact accelerometer, this technique can be used to constrain new "fifth" forces from certain models of dark energy and dark matter.   The second experiment repurposes technology developed to make ultrafast fast quantum gates to instead make an interferometer using a trapped ion qubit.  By reading out the qubit after sending the ion in a superposition of orbits around the trap, one can make a precision rotation measurement.