Strong Coupling Isotropization Simplified


Mateos, D. (2012). Strong Coupling Isotropization Simplified. Perimeter Institute. https://pirsa.org/12060013


Mateos, David. Strong Coupling Isotropization Simplified. Perimeter Institute, Jun. 04, 2012, https://pirsa.org/12060013


          @misc{ pirsa_PIRSA:12060013,
            doi = {10.48660/12060013},
            url = {https://pirsa.org/12060013},
            author = {Mateos, David},
            keywords = {},
            language = {en},
            title = {Strong Coupling Isotropization Simplified},
            publisher = {Perimeter Institute},
            year = {2012},
            month = {jun},
            note = {PIRSA:12060013 see, \url{https://pirsa.org}}

David Mateos Institucio Catalana de Recerca I Estudis Avancats (ICREA) - Universitat de Barcelona


We study the isotropization of a homogeneous, strongly coupled, non-Abelian plasma by means of its gravity dual. We compare the time evolution of a large number of initially anisotropic states as determined, on the one hand, by the full non-linear Einstein's equations and, on the other, by the Einstein's equations linearized around the final equilibrium state. The linear approximation works remarkably well even for states that exhibit large anisotropies. For example, it predicts with a 20% accuracy the isotropization time, which is of order 1/T, with T the final equilibrium temperature. We comment on possible extensions to less symmetric situations.