言外之意
发表于 2025-3-26 22:26:14
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Pericarditis
发表于 2025-3-27 04:04:52
Introduction,roblem was the existence of a critical dimension, which is 26 for the bosonic string and 10 for the fermionic string. Another obstacle for the interpretation of string theory as a theory of strong interactions was the existence of a massless spin two particle which is not present in the hadronic world.
ticlopidine
发表于 2025-3-27 09:16:39
The Classical Bosonic String,We will then solve the classical equations of motion for single free closed and open strings. These solutions will be used for the canonical quantization which we will discuss in detail in the next chapter.
斑驳
发表于 2025-3-27 12:02:12
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摇曳
发表于 2025-3-27 17:22:24
The Quantized Fermionic String,etry of the ten-dimensional theory. There are two possible space-time supersymmetric GSO projections which result in the type IIA and the type IIB superstring. We also present the covariant path integral quantization. The chapter closes with an appendix on spinors in .dimensions.
Lymphocyte
发表于 2025-3-27 20:32:35
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Projection
发表于 2025-3-27 22:03:44
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occult
发表于 2025-3-28 04:41:02
Conformal Field Theory III: Superconformal Field Theory,al field theory parallels that of conformal field theory, and we will treat those rather briefly. Of special interest are . = 2 superconformal field theories, as they are related to space-time supersymmetry. These theories show some new features which we will present in more detail.
滔滔不绝地讲
发表于 2025-3-28 09:44:47
Textbook 2013lications to black hole physics and cosmology, nor strings theory at finite temperatures. .End-of-chapter references have been added to guide the reader wishing to pursue further studies or to start research in well-defined topics covered by this book.
AMPLE
发表于 2025-3-28 14:28:21
Ivan Shorubalko,Lex Pillatsch,Ivo Utkee background fluxes modify the string equations of motion at leading order so that its solutions generically generate a potential for the would-be moduli fields. Thus they receive a vacuum expectation value and a mass. Basic knowledge of .supersymmetry in four dimensions is assumed.