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dc.contributor.advisor Thomas, John E en_US
dc.contributor.author Cao, C
dc.contributor.author Elliott, E
dc.contributor.author Joseph, J
dc.contributor.author Wu, H
dc.contributor.author Petricka, J
dc.contributor.author Schäfer, T
dc.contributor.author Thomas, JE
dc.coverage.spatial United States
dc.date.accessioned 2012-05-25T20:10:57Z
dc.date.issued 2011-01-07
dc.identifier http://www.ncbi.nlm.nih.gov/pubmed/21148347
dc.identifier science.1195219
dc.identifier.citation Science, 2011, 331 (6013), pp. 58 - 61
dc.identifier.uri http://hdl.handle.net/10161/5453
dc.description Dissertation en_US
dc.description.abstract A Fermi gas of atoms with resonant interactions is predicted to obey universal hydrodynamics, in which the shear viscosity and other transport coefficients are universal functions of the density and temperature. At low temperatures, the viscosity has a universal quantum scale ħ n, where n is the density and ħ is Planck's constant h divided by 2π, whereas at high temperatures the natural scale is p(T)(3)/ħ(2), where p(T) is the thermal momentum. We used breathing mode damping to measure the shear viscosity at low temperature. At high temperature T, we used anisotropic expansion of the cloud to find the viscosity, which exhibits precise T(3/2) scaling. In both experiments, universal hydrodynamic equations including friction and heating were used to extract the viscosity. We estimate the ratio of the shear viscosity to the entropy density and compare it with that of a perfect fluid.
dc.format.extent 58 - 61
dc.language eng
dc.relation.ispartof Science
dc.relation.isversionof 10.1126/science.1195219
dc.title Universal quantum viscosity in a unitary Fermi gas.
dc.type Journal Article
dc.department Physics en_US
pubs.author-url http://www.ncbi.nlm.nih.gov/pubmed/21148347
pubs.issue 6013
pubs.organisational-group /Duke
pubs.organisational-group /Duke/Trinity College of Arts & Sciences
pubs.organisational-group /Duke/Trinity College of Arts & Sciences/Physics
pubs.publication-status Published
pubs.volume 331
dc.identifier.eissn 1095-9203

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