Quantum Statistics and the Viscosity of Spin Polarized LiquidH3e
| Autor: | L. Puech, A. C. Forbes, O. Buu, Pierre-Etienne Wolf |
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| Rok vydání: | 1999 |
| Předmět: | |
| Zdroj: | Physical Review Letters. 83:3466-3469 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.83.3466 |
| Popis: | Using the rapid melting technique to produce strongly polarized liquid ${}^{3}\mathrm{He}$, we have studied how polarization, through the Pauli principle, enhances the liquid viscosity in a wide range of pressures and temperatures ( $2lPl27\mathrm{bars}$, $0.04lTl1.2\mathrm{K}$). Surprisingly, the viscosity enhancement is approximately linear in ${m}^{2}$, up to very large polarizations $m$ ( $m\ensuremath{\approx}70%$) and does not depend on pressure at low temperatures. Moreover, although the effect decreases with increasing temperature, it persists up to the largest temperatures studied. We discuss these findings in the context of the different descriptions of liquid ${}^{3}\mathrm{He}$. |
| Databáze: | OpenAIRE |
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