Cheung, Yeuk-Kwan E. and Freidel, Laurent and Savvidy, Konstantin (2004) Strings in gravimagnetic fields. Journal of High Energy Physics, 2004 (2). Art. No. 054. ISSN 1126-6708. http://resolver.caltech.edu/CaltechAUTHORS:CHEUjhep04
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We provide a complete solution of closed strings propagating in Nappi-Witten space. Based on the analysis of geodesics we construct the coherent wavefunctions which approximate as closely as possible the classical trajectories. We then present a new free field realization of the current algebra using the gamma, beta ghost system. Finally we construct the quantum vertex operators, for the tachyon, by representing the wavefunctions in terms of the free fields. This allows us to compute the three- and four-point amplitudes, and propose the general result for N-point tachyon scattering amplitude.
|Additional Information:||Copyright © Institute of Physics and IOP Publishing Limited 2004. Received 2 September 2003, accepted for publication 23 February 2004. Published 26 February 2004. We would like to thank Curt Callan, Francois Delduc, Jaume Gomis, David Gross, Juan Maldacena, Chiara Nappi, Rob Myers, Joe Polchinski, Christian Roemelsberger, Radu Roiban, Yuji Satoh, John Schwarz, Joerg Teschner and Edward Witten for very useful discussions. We would like to thank the visitor program of Perimeter Institute for bringing us together; and K.S. would like to thank Caltech Theory Group for extended hospitality. We would also like to thank the Aspen Center where part of the work was done. E.C. was supported in parts by John McCone Foundation and DOE grant DE-FG03-92-ER40701, and by the Perimeter Institute's visitor program. L.F. was supported in parts by grants UMR 5672 du CNRS and by the Perimeter Institute's visitor program. Finally E.C. and K.S. would like to thank Rob Myers and Renee Schingh for support and encouragement.|
|Subject Keywords:||superstrings and heterotic strings; superstring vacua; conformal field models in string theory; penrose limit and pp-wave background|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||23 Feb 2006|
|Last Modified:||29 Aug 2014 14:38|
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