Quantum Projection Noise in an Atomic Fountain: A High Stability Cesium Frequency Standard

Details Quantum Projection Noise in an Atomic Fountain: A High Stability Cesium Frequency Standard Quantum Projection Noise in an Atomic Fountain: A High Stability Cesium Frequency Standard

Jun 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999phrvl..82.4619s&link_type=abstract

Physical Review Letters, Volume 82, Issue 23, June 7, 1999, pp.4619-4622

Physics

162

Scientific paper

We describe the operation of a laser cooled cesium fountain clock in the quantum limited regime. An ultrastable cryogenic sapphire oscillator is used to measure the short-term frequency stability of the fountain as a function of the number of detected atoms Nat. For Nat varying from 4×104 to 6×105 the Allan standard deviation of the frequency fluctuations is in excellent agreement with the N-1/2at law of atomic projection noise. With 6×105 atoms, the relative frequency stability is 4×10-14τ-1/2, where τ is the integration time in seconds. This is the best short-term stability ever reported for primary frequency standards, a factor of 5 improvement over previous results.

Affiliated with

Also associated with

No associations

Rating

Quantum Projection Noise in an Atomic Fountain: A High Stability Cesium Frequency Standard does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantum Projection Noise in an Atomic Fountain: A High Stability Cesium Frequency Standard, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum Projection Noise in an Atomic Fountain: A High Stability Cesium Frequency Standard will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1801278