Vladan Vuletic
The performance of the best atomic clocks and other precision atom interferometers is limited by the quantum noise in the final readout measurement, a situation referred to as the standard quantum limit. This limit arises from the projection postulate when applied to an ensemble of independent particles, i.e. it arises from single-particle quantum mechanics. I will discuss how quantum mechanically correlated (entangled) states of the many-body system can be used to overcome the standard quantum limit, and how to generate such states in an ensemble of distant atoms using light. We demonstrate a clock operated with a phase-squeezed input state that achieves a given precision almost three times faster than a clock operating at the standard quantum limit.
Friday, February 10th at 4:00 PM
Room L211, Technological Institute
Refreshments are served at 3:30 PM
