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On Holographic Thermalization and Dethermalization of Quark-Gluon Plasma | | I. Ya. Arefeva
; I. V. Volovich
; | | Date: |
26 Nov 2012 | | Abstract: | We estimate the ratio of the thermalization time over the freeze-out time
using a holographic AdS-Vaidya model for quark-gluon plasma formed in the heavy
ion collisions. In the model the process of thermalization is described as
formation of the black hole in AdS space while dethermalization process,
related with the freeze-out, as the black hole evaporation due to the Hawking
radiation that is modeled by the Vaidya metric with a negative mass. In this
model the thermalization takes place only at small scales and absent in the
infrared region. At small scales the system tends towards a state of the
thermal equilibrium only for the short time after which the processes of
dethermalization starts. In this simple model the dethermalization time has a
low bound about 7 fm/c which is consistent with experimental data. | | Source: | arXiv, 1211.6041 | | Services: | Forum | Review | PDF | Favorites | |
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