Physics with Atomic Clocks: Beyond what time is it?

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• Prof Kurt Gibble (Penn State)
• Monday 18 May 2009, 15:30-17:00
• HEP Seminar Room (980) Rutherford Building, Cavendish Laboratory.

If you have a question about this talk, please contact pjh65.

Atomic clocks realize the most accurate measurements of any kind and are extremely sensitive to incredibly small perturbations. The current generation of atomic clocks uses laser-cooling and, after circumventing some new problems, these will realize 100 fold improvements in clock accuracies. I will describe the basic physics of clocks and several of the new problems. These include frequency shifts due to collisions of the cold atoms, the size of the recoil of an atom when it absorbs a photon, and juggling many atoms in fountains. Looking forward, the next generation of atomic clocks will utilize optical frequency transitions and an elegant technology to count the optical frequency (10^15 Hz) ticks of the clock.

This talk is part of the AMOP list series.

This talk is included in these lists:

• AMOP list
• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Centre for Health Leadership and Enterprise
• Featured lists
• HEP Seminar Room (980) Rutherford Building, Cavendish Laboratory
• ME Seminar
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• School of Physical Sciences
• Thin Film Magnetic Talks

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