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