TY - JOUR

T1 - Cosmological experiments in liquid He-4

T2 - status and prospects

AU - Hendry, P. C.

AU - Lawson, N. Stuart

AU - Lee, Richard A. M.

AU - McClintock, Peter V. E.

AU - Williams, Charles D. H.

N1 - Proceedings of the Symposium on Vortices, Interfaces and Mesoscopic Phenomena in Quantum Systems, Jyvaskyla, Finland, 4-9 June 1005

PY - 1995/5/2

Y1 - 1995/5/2

N2 - A recent experiment, in which a small volume of liquid 4He is expanded rapidly through the lambda transition to model the mechanism of cosmic string creation in the early universe, is reviewed. New data are presented, suggesting that, although most of the quantized vortices generated in the expansion are created (like cosmic strings) by passage through the phase transition at a finite speed, a proportion of them are probably produced through more conventional processes. Possible ways of redesigning the experiment, so as to reduce the latter extraneous vortex creation processes, are discussed.

AB - A recent experiment, in which a small volume of liquid 4He is expanded rapidly through the lambda transition to model the mechanism of cosmic string creation in the early universe, is reviewed. New data are presented, suggesting that, although most of the quantized vortices generated in the expansion are created (like cosmic strings) by passage through the phase transition at a finite speed, a proportion of them are probably produced through more conventional processes. Possible ways of redesigning the experiment, so as to reduce the latter extraneous vortex creation processes, are discussed.

U2 - 10.1016/0921-4526(94)01109-E

DO - 10.1016/0921-4526(94)01109-E

M3 - Journal article

VL - 210

SP - 209

EP - 214

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

IS - 3-4

ER -