Coherently Precessing Spin Structure in 3He-B High-Resolution Quantum Amplifier |
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Authors: | E. Gažo M. Kupka M. Medeová P. Skyba L'. Lokner R. Scheibel |
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Affiliation: | (1) Institute of Experimental Physics, Slovak Acad. Sci., Watsonova 47, 04353 Koice, Slovakia;(2) Department of Experimental Physics, Faculty of Science, P.J. afárik University, Park Angelinum 9, 04154 Koice, Slovakia |
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Abstract: | We present results of the study of surface oscillation modes of coherently precessing nuclear spins in the superfluid 3He-B known as a homogeneously precessing domain (HPD). HPD represents the first macroscopic experimental manifestation of magnetic superfluidity phenomenon. The measurements showed that HPD is extremely sensitive to longitudinal perturbations and it behaves as tuned (by magnetic field gradient) quantum amplifier that allows to measure very small changes of magnetic field with very high relative resolution, of the order of 10-7. |
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Keywords: | superfluid 3He spin dynamics |
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