Results 11 to 20 of about 2,417 (172)
KLT factorization of winding string amplitudes [PDF]
Journal of High Energy Physics, 2021 We uncover a Kawai-Lewellen-Tye (KLT)-type factorization of closed string amplitudes into open string amplitudes for closed string states carrying winding and momentum in toroidal compactifications.
Jaume Gomis, Ziqi Yan, Matthew Yu
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KLT factorization of nonrelativistic string amplitudes
Journal of High Energy Physics, 2022 We continue our study of the Kawai-Lewellen-Tye (KLT) factorization of winding string amplitudes in [1]. In a toroidal compactification, amplitudes for winding closed string states factorize into products of amplitudes for open strings ending on an array
Ziqi Yan, Matthew Yu
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On polytopes and generalizations of the KLT relations [PDF]
Journal of High Energy Physics, 2020 We combine the technology of the theory of polytopes and twisted intersection theory to derive a large class of double copy relations that generalize the classical relations due to Kawai, Lewellen and Tye (KLT).
Nikhil Kalyanapuram
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Journal of High Energy PhysicsWe study the building blocks of open and closed string amplitudes on AdS. These are given by two infinite towers of world-sheet integrals generalising the Euler and complex beta functions respectively. We show that the open and closed building blocks are
Luis F. Alday +2 more
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The KLT Kernel in Twistor Space. [PDF]
Commun Math PhysAbstract The double copy relationship between Yang–Mills theory and general relativity can be stated in terms of a field theory Kawai–Lewellen–Tye (KLT) momentum kernel, which maps two colour-ordered gluon amplitudes to a graviton amplitude at tree-level.
Adamo T, Klisch S.
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Projectively flat klt varieties [PDF]
Journal de l’École polytechnique — Mathématiques, 2021 In the context of uniformisation problems, we study projective varieties with klt singularities whose cotangent sheaf admits a projectively flat structure over the smooth locus. Generalising work of Jahnke-Radloff, we show that torus quotients are the only klt varieties with semistable cotangent sheaf and extremal Chern classes. An analogous result for
Greb, Daniel +2 more
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Soft theorems and the KLT-relation [PDF]
Journal of High Energy Physics, 2020 Abstract We find new relations for the non-universal part of the Yang-Mills amplitudes by combining the KLT-relation and the soft behavior of gauge and gravity amplitudes. We also extend the relations to include contributions from effective operators.
Rafael Aoude, Andreas Helset
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Note on new KLT relations [PDF]
Journal of High Energy Physics, 2010 In this short note, we present two results about KLT relations discussed in recent several papers. Our first result is the re-derivation of Mason-Skinner MHV amplitude by applying the S_{n-3} permutation symmetric KLT relations directly to MHV amplitude.
Feng, B., He, S., Huang, R., Jia, Y.
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PLT versus KLT [transforms] [PDF]
ISCAS'99. Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI (Cat. No.99CH36349), 2003 In this paper a new class of transforms named Prediction-based Lower triangular Transform (PLT) is introduced for signal compression. The PLT is a nonunitary transform that yields the same coding gain as the Kahunen-Loeve transform (KLT). Unlike KLT, the derivation of PLT does not involve any eigen problem.
See-May Phoong, Yuan-Pei Lin
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Advanced Interrogation of Fiber-Optic Bragg Grating and Fabry-Perot Sensors with KLT Analysis
Sensors, 2015 The Karhunen-Loeve Transform (KLT) is applied to accurate detection of optical fiber sensors in the spectral domain. By processing an optical spectrum, although coarsely sampled, through the KLT, and subsequently processing the obtained eigenvalues, it ...
Daniele Tosi
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