Fluctuations in Relativistic Causal Hydrodynamics

20 May 2014, 16:30
2h
spectrum (darmstadtium)

spectrum

darmstadtium

Board: I-22
Poster Correlations and Fluctuations Poster session

Speaker

Dr Ananta P. Mishra (Physical Research Laboratory, Ahmedabad)

Description

Formalism to calculate the hydrodynamic fluctuations by applying the Onsager theory to the relativistic Navier-Stokes equation is already known. In this work, we calculate hydrodynamic-fluctuations in the framework of the causal hydrodynamics of M\"{u}ller, Israel and Stewart and the other related approaches. We show that expressions for the Onsager-coefficients and the correlation-functions have forms similar to the ones obtained by using the relativistic Navier-Stokes equation. However, spatio-temporal evolution of the correlation functions obtained using MIS and the other causal theories can be significantly different from the correlation functions obtained using the Navier-Stokes equation. Finally, as an illustrative example, we numerically evaluate the correlation-functions using the one-dimensional expanding boost-invariant (Bjorken) flows and compare the correlation-functions obtained using the various hydrodynamic approaches.
On behalf of collaboration: None

Primary author

Dr Ananta P. Mishra (Physical Research Laboratory, Ahmedabad)

Presentation Materials