David, Justin R and Sadhukhan, Abhishake (2011) Classical integrability in the BTZ black hole. In: Journal of High Energy Physics (8).
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Using the fact the BTZ black hole is a quotient of AdS(3) we show that classical string propagation in the BTZ background is integrable. We construct the flat connection and its monodromy matrix which generates the non-local charges. From examining the general behaviour of the eigen values of the monodromy matrix we determine the set of integral equations which constrain them. These equations imply that each classical solution is characterized by a density function in the complex plane. For classical solutions which correspond to geodesics and winding strings we solve for the eigen values of the monodromy matrix explicitly and show that geodesics correspond to zero density in the complex plane. We solve the integral equations for BMN and magnon like solutions and obtain their dispersion relation. We show that the set of integral equations which constrain the eigen values of the monodromy matrix can be identified with the continuum limit of the Bethe equations of a twisted SL(2, R) spin chain at one loop. The Landau-Lifshitz equations from the spin chain can also be identified with the sigma model equations of motion.
| Item Type: | Journal Article |
|---|---|
| Publication: | Journal of High Energy Physics |
| Publisher: | Springer |
| Additional Information: | Copyright of this article belongs to Springer. |
| Keywords: | Integrable Equations in Physics;AdS-CFT Correspondence;Black Holes |
| Department/Centre: | Division of Physical & Mathematical Sciences > Centre for High Energy Physics |
| Date Deposited: | 25 Oct 2011 09:55 |
| Last Modified: | 25 Oct 2011 09:55 |
| URI: | http://eprints.iisc.ac.in/id/eprint/41664 |
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