Title

VISCOSITY INCREASE UPON SPIN POLARIZATION OF A DILUTE FERMI GAS

Publication Date

1991

Journal or Book Title

PHYSICAL REVIEW LETTERS

Abstract

A vibrating-wire technique has been used to directly measure the viscosity increase in a dilute 3-4He solution caused by brute-force spin polarization up to 40%. The viscosity of a solution with degeneracy temperature TF=19.5 mK was measured over the temperature range 6.1–100 mK in magnetic fields of 1.00 and 7.96 T. Spin polarization caused a marked decrease in the mechanical Q of the viscometer at low temperatures. The observed viscosity is compared with calculations of the transport coefficients of dilute quantum gases for all temperatures and spin polarizations.

Comments

Published version located at http://prl.aps.org/abstract/PRL/v67/i3/p330_1

Volume

67

Pages

330-333

Issue

3

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