Evidence for quantum chaos in the plasma phase of QCD

Abstract

We investigate the eigenvalue spectrum of the staggered Dirac matrix in SU(3) gauge theory and in full QCD on a $6^3\times 4$ lattice. As a measure of the fluctuation properties of the eigenvalues, we study the nearest-neighbor spacing distribution $P(s)$ for various values of $\beta$ both in the confinement and in the deconfinement phase. In both phases except far into the deconfinement region, the lattice data agree with the Wigner surmise of random-matrix theory which is indicative of quantum chaos. We do not find signs of a transition to Poisson regularity at the deconfinement phase transition.

8 pages, 10 figures (included), acknowledgement completed

References in corpus (2)

• Chaotic behavior of confining lattice gauge field configurations
• Quantum chaos in QCD at finite temperature

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