Nuclear spin gyroscope based on an atomic co-magnetometer

Details Nuclear spin gyroscope based on an atomic co-magnetometer Nuclear spin gyroscope based on an atomic co-magnetometer

2005-05-12

arxiv.org/abs/physics/0505089v1

Phys. Rev. Lett. 95, 230801 (2005)

Physics

Atomic Physics

4 pages, 5 figures, submitted to Physical Review Letters

Scientific paper

10.1103/PhysRevLett.95.230801

We describe a nuclear spin gyroscope based on an alkali-metal-noble-gas co-magnetometer. An optically pumped alkali-metal vapor is used to polarize the noble gas atoms and detect their gyroscopic precession. Spin precession due to magnetic fields as well as their gradients and transients can be cancelled in this arrangement. The sensitivity is enhanced by using a high-density alkali-metal vapor in a spin-exchange relaxation free (SERF) regime. With a K-3He co-magnetometer we demonstrate rotation sensitivity of 5 10^(-7) rad/sec/Hz^(1/2). The rotation signal can be increased by a factor of 10 using 21Ne due to its smaller magnetic moment and the fundamental rotation sensitivity limit for a 21Ne gyroscope with a 10 cm^3 measurement volume is about 2 10^(-10) rad/sec/Hz^(1/2).

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