Probing “Cosmological” Defects in Superfluid [sup 3]He-B with a Vibrating-Wire Resonator

by: CB Winkelmann, J Elbs, Yu, H Godfrin

Physical Review Letters, Vol. 96, No. 20. (2006)

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We report on the observation of an anomalously high damping measured by a vibrating-wire resonator (VWR) immersed into superfluid 3He-B at ultralow temperatures. The observed dissipation is orders of magnitude above that corresponding to friction with the dilute normal fraction and superfluid vortices. A clear pinning behavior is also observed, as well as a strong magnetic field dependence. Our analysis points to the interaction of the VWR with a planar topological defect, analogue to cosmological vacua defects, as proposed by Salomaa and Volovik.

@article{citeulike:2754601, abstract = {We report on the observation of an anomalously high damping measured by a vibrating-wire resonator (VWR) immersed into superfluid 3He-B at ultralow temperatures. The observed dissipation is orders of magnitude above that corresponding to friction with the dilute normal fraction and superfluid vortices. A clear pinning behavior is also observed, as well as a strong magnetic field dependence. Our analysis points to the interaction of the VWR with a planar topological defect, analogue to cosmological vacua defects, as proposed by Salomaa and Volovik.}, author = {Winkelmann, C. B. and Elbs, J. and Yu and Godfrin, H. }, citeulike-article-id = {2754601}, doi = {10.1103/PhysRevLett.96.205301}, journal = {Physical Review Letters}, keywords = {2006, defect, focus, quench}, number = {20}, posted-at = {2008-05-04 23:38:10}, priority = {2}, publisher = {APS}, title = {Probing ``Cosmological'' Defects in Superfluid [sup 3]He-B with a Vibrating-Wire Resonator}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PRLTAO000096000020205301000001\&idtype=cvips\&gifs=yes}, volume = {96}, year = {2006} }

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TY - JOUR ID - citeulike:2754601 L3 - citeulike-article-id:2754601 TI - Probing ``Cosmological'' Defects in Superfluid [sup 3]He-B with a Vibrating-Wire Resonator JF - Physical Review Letters VL - 96 IS - 20 PB - APS N2 - We report on the observation of an anomalously high damping measured by a vibrating-wire resonator (VWR) immersed into superfluid 3He-B at ultralow temperatures. The observed dissipation is orders of magnitude above that corresponding to friction with the dilute normal fraction and superfluid vortices. A clear pinning behavior is also observed, as well as a strong magnetic field dependence. Our analysis points to the interaction of the VWR with a planar topological defect, analogue to cosmological vacua defects, as proposed by Salomaa and Volovik. KW - 2006 KW - defect KW - focus KW - quench AU - Winkelmann, CB AU - Elbs, J AU - Yu AU - Godfrin, H PY - 2006/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000096000020205301000001&idtype=cvips&gifs=yes ER -

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