Time evolution of temperature fluctuation in a non-equilibrated system
Discipline of Physics, School of Basic Sciences, Indian Institute of Technology Indore, Khandwa Road, MP-453552, Simrol, India
2 Centre of Astronomy, School of Basic Sciences, Indian Institute of Technology Indore, Khandwa Road, MP-453552, Simrol, India
* e-mail: Raghunath.Sahoo@cern.ch
Accepted: 20 July 2016
Published online: 15 September 2016
The evolution equation for inhomogeneous and anisotropic temperature fluctuation inside a medium is derived within the ambit of Boltzmann Transport Equation (BTE) for a hot gas of massless particles. Also, specializing to a situation created after a heavy-ion collision (HIC), we analyze the Fourier space variation of temperature fluctuation of the medium using its temperature profile. The effect of viscosity on the variation of fluctuations in the latter case is investigated and possible implications for early universe cosmology, and its connection with HICs are also explored.
© The Author(s), 2016