Flux locking a superfluid interferometer

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We demonstrate a flux locking technique using injected heat current to linearize the output of a superfluid helium-4 interferometer. A rotation flux through the interferometer loop produces a shift in the phase of the superfluid order parameter. This shift is nullified via negative feedback by a phase-shift caused by the injected heat current. The feedback signal is then a linear function of rotation flux.
3 pages, 2 figures

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Other Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/136604

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0708.3236
 http://arxiv.org/abs/0708.3236
 Y. Sato, A. Joshi, and R. Packard, Appl. Phys. Lett. 91, 074107 (2007)
 doi:10.1063/1.2772659

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arXiv