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＜電子ブック＞
Twistor Sigma Models : Gravity, Amplitudes, and Flat Space Holography / by Atul Sharma
(Springer Theses, Recognizing Outstanding Ph.D. Research. ISSN:21905061)

版	1st ed. 2023.
出版者	(Cham : Springer Nature Switzerland : Imprint: Springer)
出版年	2023
本文言語	英語
大きさ	XVI, 128 p. 3 illus : online resource
著者標目	*Sharma, Atul author SpringerLink (Online service)
件　名	LCSH:Cosmology LCSH:General relativity (Physics) LCSH:Mathematical physics FREE:Cosmology FREE:General Relativity FREE:Mathematical Methods in Physics
一般注記	Introduction -- Twistors for Flat Space -- Sigma Models and Hyperkähler Geometry -- Graviton Scattering in Flat Space -- Celestial Holography -- Twistors for SD Radiative Space-Times In recent decades, twistor theory has grown into an irreplaceable tool for the study of scattering amplitudes in gauge theory and gravity. This book introduces the reader to cutting-edge advances in twistor theory and its applications to general relativity. The problem of graviton scattering in four dimensions is shown to be dual to dramatically simpler computations in a two-dimensional CFT known as a twistor sigma model. Twistor sigma models are the first step toward a holographic description of gravity in asymptotically flat space-times. They underpin the infinitely many asymptotic symmetries of flat space physics discovered in celestial holography, and extend them to exciting new arenas like curved space-times. They also yield intrinsically mathematical results in the field of hyperkähler manifolds. This volume will be of broad interest to students and researchers looking for an accessible entry point into twistor geometry, scattering amplitudes, and celestial holography. It will also provide an invaluable reference for specialists by bringing together results from a host of different disciplines HTTP:URL=https://doi.org/10.1007/978-3-031-50751-9

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