TY - JOUR
T1 - Onset of superfluidity far from equilibrium
T2 - 22nd International Conference on Low Temperature Physics (LT-22)
AU - Duncan, R. V.
AU - Sergatskov, D. A.
AU - Boyd, S. T.P.
AU - McCarson, T. D.
AU - Babkin, A.
AU - Day, P. K.
AU - Elliott, D.
N1 - Funding Information:
We thank Dr. Rudolf Haussmann, Dr. Peter Weichman, and Dr. Jonathan Miller for numerous helpful discussions, and for preprints of their publications. We also thank Mr. Andrew Chatto, Ms. Alexa Harter, and Prof. David Goodstein for many interesting discussions. This work has been supported by the Microgravity Science Program Office of NASA under Contract 960494, and conducted in collaboration with the Jet Propulsion Laboratory.
PY - 2000/5/11
Y1 - 2000/5/11
N2 - Nonlinear heat conduction has recently been measured near the superfluid transition in pure 4He at very low heat flux Q. Since both dynamic effects and gravity limit the divergence of the superfluid correlation length near the transition at low-Q, these measurements must be repeated in the microgravity environment in order to observe the dynamic effects in isolation. Comparison of the microgravity data to similar data obtained on Earth will provide experimental insight into the effect of gravity on this nonlinear conduction region at low heat flux where theoretical predictions are lacking. While some measurement advantages exist in the microgravity laboratory, it is the study of the direct effect of gravity on the nonlinear conduction measurements that motivate the microgravity need.
AB - Nonlinear heat conduction has recently been measured near the superfluid transition in pure 4He at very low heat flux Q. Since both dynamic effects and gravity limit the divergence of the superfluid correlation length near the transition at low-Q, these measurements must be repeated in the microgravity environment in order to observe the dynamic effects in isolation. Comparison of the microgravity data to similar data obtained on Earth will provide experimental insight into the effect of gravity on this nonlinear conduction region at low heat flux where theoretical predictions are lacking. While some measurement advantages exist in the microgravity laboratory, it is the study of the direct effect of gravity on the nonlinear conduction measurements that motivate the microgravity need.
UR - http://www.scopus.com/inward/record.url?scp=0033872683&partnerID=8YFLogxK
U2 - 10.1016/S0921-4526(99)01445-3
DO - 10.1016/S0921-4526(99)01445-3
M3 - Conference article
AN - SCOPUS:0033872683
SN - 0921-4526
VL - 280
SP - 45
EP - 49
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - 1-4
Y2 - 4 August 1999 through 11 August 1999
ER -