Duality Symmetry and the Cardy Limit

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

46 pages, Latex, Some comments added in Introduction and Conclusions. Minor changes made in sections 3.4 and 5

Scientific paper

10.1088/1126-6708/2008/07/072

We study supersymmetric and non-supersymmetric extremal black holes obtained in Type IIA string theory compactified on K3 X T^2, with duality group O(6,22,Z) X SL(2,Z). In the Cardy limit an internal circle combines with the AdS_2 component in the near horizon geometry to give a BTZ black hole whose entropy is given by the Cardy formula. We study black holes carrying D0-D4 and D0-D6 brane charges. We find, both in the supersymmetric and non-supersymmetric cases, that a generic set of charges cannot be brought to the Cardy limit using the duality symmetries. In the non-supersymmetric case, unlike the supersymmetric one, we find that when the charges are large, a small fractional change in them always allows the charges to be taken to the Cardy limit. These results could lead to a microscopic determination of the entropy for extremal non-supersymmetric black holes, including rotating cases like the extreme Kerr black hole in four dimensions.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Duality Symmetry and the Cardy Limit does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Duality Symmetry and the Cardy Limit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Duality Symmetry and the Cardy Limit will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-45766

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.