Flux locking a superfluid interferometer
نویسندگان
چکیده
The authors 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. © 2007 American Institute of Physics. #DOI: 10.1063/1.2772659$
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