TY - JOUR
T1 - Effective temperature and scaling laws of polarized quantum vortex bundles
AU - Jou, D.
AU - Mongiovì, M. S.
PY - 2011/10/3
Y1 - 2011/10/3
N2 - An effective non-equilibrium temperature is defined for (locally) polarized and dense turbulent superfluid vortex bundles, related to the average energy of the excitations (Kelvin waves) of vortex lines. In the quadratic approximation of the excitation energy in terms of the wave amplitude A, a previously known scaling relation between amplitude and wavelength k of Kelvin waves in polarized bundles, namely A∞k-1/2, follows from the homogeneity of the effective temperature. This result is analogous to that of the well-known equipartition result in equilibrium systems. © 2011 Elsevier B.V.
AB - An effective non-equilibrium temperature is defined for (locally) polarized and dense turbulent superfluid vortex bundles, related to the average energy of the excitations (Kelvin waves) of vortex lines. In the quadratic approximation of the excitation energy in terms of the wave amplitude A, a previously known scaling relation between amplitude and wavelength k of Kelvin waves in polarized bundles, namely A∞k-1/2, follows from the homogeneity of the effective temperature. This result is analogous to that of the well-known equipartition result in equilibrium systems. © 2011 Elsevier B.V.
KW - Non-equilibrium temperature
KW - Non-equilibrium thermodynamics
KW - Scaling laws
KW - Turbulent superfluids
KW - Vortices
UR - https://www.scopus.com/pages/publications/80052970973
U2 - 10.1016/j.physleta.2011.08.041
DO - 10.1016/j.physleta.2011.08.041
M3 - Article
SN - 0375-9601
VL - 375
SP - 3664
EP - 3667
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
ER -