Ordinary SQUID interferometers and superfluid helium matter wave interferometers: The role of quantum fluctuations

When comparing the operation of a superfluid helium matter wave quantum interferometer (He SQUID) with that of an ordinary direct-current quantum interferometer (dc SQUID), we estimate their resolution limitation that correspond to quantum fluctuations. An alternative mode of operation of the interf...

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Veröffentlicht in:	Journal of experimental and theoretical physics 2010-08, Vol.111 (2), p.332-339
Hauptverfasser:	Golovashkin, A. I., Zherikhina, L. N., Tskhovrebov, A. M., Izmailov, G. N., Ozolin, V. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Classical and Quantum Gravitation CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY CURRENTS DE BROGLIE WAVELENGTH DIRECT CURRENT ELECTRIC CURRENTS ELECTRONIC EQUIPMENT Elementary Particles ELEMENTS FLUCTUATIONS FLUIDS FLUXMETERS GASES HELIUM INTERFEROMETERS MEASURING INSTRUMENTS MICROWAVE EQUIPMENT NONMETALS OPERATION Optical instruments Particle and Nuclear Physics Physics Physics and Astronomy Quantum Field Theory QUANTUM FLUIDS RARE GASES Relativity Theory RESOLUTION Reviews Solid State Physics SQUID DEVICES SUPERCONDUCTING DEVICES Superconductors SUPERFLUIDITY VARIATIONS WAVELENGTHS
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Zusammenfassung:	When comparing the operation of a superfluid helium matter wave quantum interferometer (He SQUID) with that of an ordinary direct-current quantum interferometer (dc SQUID), we estimate their resolution limitation that correspond to quantum fluctuations. An alternative mode of operation of the interferometer as a unified macroquantum system is considered.
ISSN:	1063-7761 1090-6509
DOI:	10.1134/S1063776110080285