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Volumn 46, Issue 6, 1992, Pages 3540-3549

Principles of superfluid-helium gyroscopes

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Indexed keywords


EID: 0000734652     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.46.3540     Document Type: Article
Times cited : (59)

References (42)
  • 2
    • 84927882564 scopus 로고    scopus 로고
    • Bonaldi et al., in Proceedings of the 4th Marcel Grossman Meeting on General Relativity, edited by R. Ruffini (Elsevier, Amsterdam, 1986), p. 1309.
  • 9
    • 84927882561 scopus 로고    scopus 로고
    • (unpublished). See also B.F. Chiao, EOS, Transactions of the AGU (to be published).
    • Herring, T.A.1
  • 11
    • 84927882560 scopus 로고    scopus 로고
    • See, for instance, D. Vollhardt and P. Wölfle, The Superfluid Phases of Helium3 (Taylor & Francis, London, 1990).
  • 17
    • 84927882559 scopus 로고    scopus 로고
    • For the partitioned torus with arbitrary radii, the exact irrotational flow field can be found by conformal mapping techniques. In unpublished work (O. Alvarez and A. L. Fetter), the solution shows that the solid-body solution is always a very good approximation at some radial position.
  • 20
    • 84927882558 scopus 로고    scopus 로고
    • See, for example, the discussion in J. S. Langer and J. D. Reppy, in Progress in Low Temperature Physics, edited by C. J. Gorter (North-Holland, Amsterdam, 1970), Vol. 6.
  • 24
    • 84927882557 scopus 로고    scopus 로고
    • Throughout this paper we aim the discussion at detecting changes in rotation rather than absolute rotation. The SHEG can detect absolute rotation by reorienting the loop with respect to the rotation vector.
  • 26
    • 84927882556 scopus 로고    scopus 로고
    • It should be mentioned that objects of m have not yet been cooled to 10 mK. However, gravity antennas of meter dimensions, weighing 103 kg, have been cooled below 100 mK [G. Pizzella (private communication)]. There is no technological reason preventing the refrigeration of large objects to millikelvin temperatures.
  • 37
    • 84927882553 scopus 로고    scopus 로고
    • If the critical currents of the two holes differ, the depth of the modulation pattern is diminshed in a linear fashion. Also, if the current-phase relation is not quite sinusoidal, numerical calculations show that the modulation is also diminished. However, as long as the current-phase relation is nonlinear, single valued, and periodic in phase, the maximum current through the device continues to display the qualitative features inherent in Eq. (29).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.