The shear viscosity of a trapped Bose-condensed gas

Journal Article · Mon May 15 00:00:00 EDT 2006 · Annals of Physics (New York)

DOI:https://doi.org/10.1016/j.aop.2005.12.011· OSTI ID:20767010

Shahzamanian, M A ^[1]; Yavary, H ^[2]

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1. Department of Physics, University of Isfahan, Isfahan 81744 (Iran, Islamic Republic of)
2. Faculty of Khansar, University of Isfahan, Isfahan 81744 (Iran, Islamic Republic of)

By obtaining Kubo formula type and using nonequilibrium Green's functions, we calculate the shear viscosity of a trapped Bose-condensed gas below and above the Bose-Einstein condensation temperature (T {sub BEC}). The contributions of the interactions between condensate and noncondensate atoms and between noncondensate atoms take into account to the viscous relaxation time, by evaluating second order self-energies in Beliaev approximation.

• OSTI ID: 20767010
• Journal Information: Annals of Physics (New York), Vol. 321, Issue 5; Other Information: DOI: 10.1016/j.aop.2005.12.011; PII: S0003-4916(06)00002-9; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
APPROXIMATIONS
ATOMS
BOSE-EINSTEIN CONDENSATION
BOSE-EINSTEIN GAS
GREEN FUNCTION
KUBO FORMULA
RELAXATION TIME
SELF-ENERGY
SHEAR
TRAPPING
VISCOSITY