- Author
- Year
- 2010
- Title
- Holographic Brownian motion and time scales in strongly coupled plasmas
- Number of pages
- 61
- Publisher
- Amsterdam: Institute for Theoretical Physics (ITFA), University of Amsterdam
- Series
- ITFA, 10-06
- Document type
- Working paper
- Faculty
- Faculty of Science (FNWI)
- Institute
- Institute for Theoretical Physics Amsterdam (ITFA)
- Abstract
-
We study Brownian motion of a heavy quark in field theory plasma in the AdS/CFT setup and discuss the time scales characterizing the interaction between the Brownian particle and plasma constituents. In particular, the mean-free-path time is related to the connected 4-point function of the random force felt by the Brownian particle. By holographically computing the 4-point function and regularizing the IR divergence appearing in the computation, we write down a general formula for the mean-free-path time, and apply it to the STU black hole which corresponds to plasma charged under three U(1) R-charges. The result indicates that the Brownian particle collides with many plasma constituents simultaneously.
- Link
- Link
- Language
- English
- Persistent Identifier
- https://hdl.handle.net/11245/1.331997
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