CaltechAUTHORS
  A Caltech Library Service

Detection of absolute rotation using superfluid ^4He

Schwab, K. and Bruckner, N. and Packard, R. (1998) Detection of absolute rotation using superfluid ^4He. Low Temperature Physics, 24 (2). pp. 102-104. ISSN 1063-777X. http://resolver.caltech.edu/CaltechAUTHORS:20111220-134626966

[img]
Preview
PDF - Published Version
See Usage Policy.

80Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20111220-134626966

Abstract

We have developed the superfluid analog of the superconducting rf SQUID. Such a device is a quantum mechanically based, absolute gyroscope and has been used to sense the rotation of the Earth. Our device is fabricated using silicon processing techniques and forms a planer sensing loop of superfluid helium which couples to the applied rotation. A much more sensitive superfluid gyroscope based on the principle’s demonstrated with this device, might ultimately be used to detect the precession of our local inertial frame with respect to the fixed stars by the gravitomagnetic field of the rotating Earth. We compare the superfluid gyroscope against two other experiments aimed at detecting this general relativistic effect.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.593549 DOIUNSPECIFIED
http://link.aip.org/link/doi/10.1063/1.593549 PublisherUNSPECIFIED
Additional Information:© 1998 American Institute of Physics. This work is supported by the Office of Naval Research and the National Science Foundation. This article was published in English in the original journal.
Funders:
Funding AgencyGrant Number
Office of Naval ResearchUNSPECIFIED
NSFUNSPECIFIED
Subject Keywords:superfluid helium-4, angular measurement, gyroscopes, general relativity
Classification Code:PACS: 07.10.-h; 06.30.Bp; 67.90.+z; 04.80.Cc
Record Number:CaltechAUTHORS:20111220-134626966
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20111220-134626966
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28542
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:20 Dec 2011 22:09
Last Modified:26 Dec 2012 14:38

Repository Staff Only: item control page