Entropy of Berenstein-Maldacena-Nastase Strings
arXiv:1910.02581 · doi:10.1103/PhysRevD.101.046027
Abstract
In a previous paper, we proposed a probability interpretation for higher genus amplitudes of BMN (Berenstein-Maldacena-Nastase) strings in a pp-wave background with infinite negative curvature. This provides a natural definition of the entropy of a BMN string as the Shannon entropy of its corresponding probability distribution. We prove a universal upper bound that the entropy grows at most logarithmically in the strong string coupling limit. We also study the entropy by numerical methods and discuss some interesting salient features.
5 pages, 1 figure. v2: journal version, some revisions including a change of the title