Speaker
Tomoya Hayata
(University of Tokyo)
Description
We study the complex potential between a heavy quark and an anti-quark at finite temperature in large Nc and large ’tHooft coupling limit through the gauge/gravity duality[1]. The complex potential at separation r is obtained from a direct analytic continuation of the thermal Wilson loop which is always real in the Euclidean metric. We confirm that there is an imaginary part at finite temperature, which grows as a function of r. We also compare our result with the one from the recent lattice QCD simulation[2].
The gauge/gravity duality suggests the importance of competition between the real part and the imaginary part of the potential for the strongly coupled quark gluon plasma.
References
[1] K. Nawa, T. Hayata and T. Hatsuda, in progress.
[2] A. Rothkopf, T. Hatsuda and S. Sasaki, Phys. Rev. Lett. 108, 162001 (2012).
| Keywords | Complex heavy quark potential, Gauge/gravity duality, Quark-gluon plasma |
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Primary author
Dr
Kanabu Nawa
(Theoretical Research Division, Nishina Center, RIKEN)
Co-authors
Tetsuo Hatsuda
(Unknown)
Tomoya Hayata
(University of Tokyo)
