Seminar Details

Single Atom Optical Clocks

David Wineland, National Institute of Standards and Technology (NIST)
Thursday, March 13, 4:10 PM - Physics and Astronomy Colloquium
Biomedical & Physical Sciences Bldg., Rm. 1415

With the availability of spectrally pure lasers and the ability to precisely measure optical frequencies, it appears the era of optical atomic clocks has begun. In one clock project at NIST we have used single trapped atomic ions because uncertainties in systematic effects are smallest, reaching a fractional error of *f/f0 = 0.8 x 10-17. At this level, many effects, including those due to special and general relativity, must be calibrated and corrected for.