Holographic Thermalization with Chemical Potential
May, 201249 pages
Published in:
- JHEP 09 (2012) 055
e-Print:
- 1205.2354 [hep-th]
Report number:
- UTTG-05-12,
- NSF-KITP-12-060
View in:
Citations per year
Abstract: (arXiv)
We study the thermalization of a strongly coupled quantum field theory in the presence of a chemical potential. More precisely, using the holographic prescription, we calculate non- local operators such as two point function, Wilson loop and entanglement entropy in a time- dependent background that interpolates between AdSd+1 and AdSd+1 -Reissner-Nordstr\"om for d = 3, 4. We find that it is the entanglement entropy that thermalizes the latest and thus sets a time-scale for equilibration in the field theory. We study the dependence of the thermalization time on the probe length and the chemical potential. We find an interesting non-monotonic behavior. For a fixed small value of T l and small values of \mu/T the thermalization time decreases as we increase \mu/T, thus the plasma thermalizes faster. For large values of \mu/T the dependence changes and the thermalization time increases with increasing \mu/T . On the other hand, if we increase the value of T l this non-monotonic behavior becomes less pronounced and eventually disappears indicating two different regimes for the physics of thermalization: non-monotonic dependence of the thermalization time on the chemical potential for T l << 1 and monotonic for T l >> 1.Note:
- 49 pages, v2 references added, typo corrected
- potential: chemical
- entropy: entanglement
- background: time dependence
- operator: local
- two-point function
- strong coupling
- Wilson loop
- holography
- plasma
- temperature
References(42)
Figures(52)
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- [16]
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- [18]
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- [25]