1997/11/07 by Juan Maldacena, Andrew Strominger, Edward Witten · 1 citation
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1088/1126-6708/1997/12/002
published as JHEP 9712:002,1997 · 17 pages, harvmac
arxiv created 1997/11/07 · arxiv updated 2010/04/07
Extremal black holes in M-theory compactification on M× S1 are microscopically represented by fivebranes wrapping P× S1, where M is a Calabi-Yau threefold and P is a four-cycle in M. Additional spacetime charges arise from momentum around the S1 and expectation values for the self-dual three-form field strength in the fivebrane. The microscopic entropy of the fivebrane as a function of all the charges is determined from a two-dimensional (0,4) sigma model whose target space includes the fivebrane moduli space. This entropy is compared to the macroscopic formula. Precise agreement is found for both the tree-level and one-loop expressions.