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Inhomogeneous holographic thermalization

Publication ,  Journal Article
Balasubramanian, V; Bernamonti, A; de Boer, J; Craps, B; Franti, L; Galli, F; Keski-Vakkuri, E; Müller, B; Schäfer, A
Published in: Journal of High Energy Physics
October 2013

The sudden injection of energy in a strongly coupled conformal field theory and its subsequent thermalization can be holographically modeled by a shell falling into anti-de Sitter space and forming a black brane. For a homogeneous shell, Bhattacharyya and Minwalla were able to study this process analytically using a weak field approximation. Motivated by event-by-event fluctuations in heavy ion collisions, we include inhomogeneities in this model, obtaining analytic results in a long wavelength expansion. In the early-time window in which our approximations can be trusted, the resulting evolution matches well with that of a simple free streaming model. Near the end of this time window, we find that the stress tensor approaches that of second-order viscous hydrodynamics. We comment on possible lessons for heavy ion phenomenology.

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Published In

Journal of High Energy Physics

DOI

EISSN

1029-8479

Publication Date

October 2013

Volume

2013

Issue

10

Publisher

Springer Science and Business Media LLC

Related Subject Headings

  • Nuclear & Particles Physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics
 

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Balasubramanian, V., Bernamonti, A., de Boer, J., Craps, B., Franti, L., Galli, F., … Schäfer, A. (2013). Inhomogeneous holographic thermalization. Journal of High Energy Physics, 2013(10). https://doi.org/10.1007/jhep10(2013)082
Balasubramanian, V., A. Bernamonti, J. de Boer, B. Craps, L. Franti, F. Galli, E. Keski-Vakkuri, B. Müller, and A. Schäfer. “Inhomogeneous holographic thermalization.” Journal of High Energy Physics 2013, no. 10 (October 2013). https://doi.org/10.1007/jhep10(2013)082.
Balasubramanian V, Bernamonti A, de Boer J, Craps B, Franti L, Galli F, et al. Inhomogeneous holographic thermalization. Journal of High Energy Physics. 2013 Oct;2013(10).
Balasubramanian, V., et al. “Inhomogeneous holographic thermalization.” Journal of High Energy Physics, vol. 2013, no. 10, Springer Science and Business Media LLC, Oct. 2013. Crossref, doi:10.1007/jhep10(2013)082.
Balasubramanian V, Bernamonti A, de Boer J, Craps B, Franti L, Galli F, Keski-Vakkuri E, Müller B, Schäfer A. Inhomogeneous holographic thermalization. Journal of High Energy Physics. Springer Science and Business Media LLC; 2013 Oct;2013(10).
Journal cover image

Published In

Journal of High Energy Physics

DOI

EISSN

1029-8479

Publication Date

October 2013

Volume

2013

Issue

10

Publisher

Springer Science and Business Media LLC

Related Subject Headings

  • Nuclear & Particles Physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics