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NEWS

Dr. Chris W. Oates

National Institute of Standards and Technology, Boulder (USA)

Tuesday, November 13th, 2012 at 03:00:00 PM  

Conference room Querzoli - LENS - via Nello Carrara 1 - Sesto Fiorentino (Florence)

Published on-line at 09:43:38 PM on Thursday, November 8th, 2012

Optical lattice clocks based on Yb atoms

Lattice clocks use tightly focused standing waves to provide large samples of neutral atoms for Doppler-free, ultra-high resolution spectroscopy.

Over the past ten years the field of optical atomic clocks has attracted considerable attention (including a direct connection to the this year's recently announced Nobel Prize in Physics) due to its rapid progress and potential for addressing important outstanding issues in fundamental Physics.

I will briefly the review the field of optical atomic clocks, then focus on the promising example of lattice clocks, which use tightly focused standing waves to provide large samples of neutral atoms for Doppler-free, ultra-high resolution spectroscopy. I will show our latest results with 171Yb, in which we have recently addressed physical effects common to lattice clocks, including atom-atom interactions and blackbody radiation shifts, as we reduce the uncertainty of these clocks towards the 10-17 level.

For further informations, please contact Dr. Nicola Poli.