Cal Poly Pomona

Physics Seminar

Friday, April 24, 2009

A New Twist in Matter-wave Gyroscopy

Sulakshana Thanvanthri

Louisiana State University

Gyroscopes, in addition to being fun toys and Physics teaching aids, find application in inertial navigation systems used in submarines and spacecrafts. Size, stability and sensitivity are three key parameters for evaluating a gyroscope.  Laser gyros and atomic beam gyros, both based on the Sagnac effect, are currently the two most prominent versions.  Our group is proposing a new scheme, utilizing the power of both optical and atomic media. We use Optical Angular Momentum (OAM) states of light to produce counter-rotating vortices in an atomic Bose-Einstein Condensate (BEC). The interference pattern produced as a result can be used to sense rotation. In this talk, I will describe our novel gyroscopy scheme and compare it’s pros and cons with existing methods.

Refreshments at 4:00 PM. Seminar begins at 4:10 PM.
Building 8, Room 241
For further information, please call (909) 869-4014

Last modified on April 4, 2009
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