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arXiv · 0903.3946

Spectral sum rules for the quark-gluon plasma

Paul Romatschke·Dam Thanh Son
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Abstract

We derive sum rules involving the spectral density of the stress-energy tensor in N=4 super-Yang-Mills theory and pure Yang-Mills theory. The sum rules come from the hydrodynamic behavior at small momenta and the conformal (in the case of N=4 SYM theory) or asymptotically free (as for the pure Yang-Mills theory) behavior at large momenta. These sum rules may help constrain QGP transport coefficients obtained from lattice QCD.

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Paul Romatschke, Dam Thanh Son. 2009-03-24. Spectral sum rules for the quark-gluon plasma. https://doi.org/10.1103/physrevd.80.065021

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