锡箔纸
发表于 2025-3-23 10:07:18
The Relativistic Point Particlee purpose it to put it in a way that we can then generalize, to define string theory. Indeed, if we only think clearly enough about some mechanism for the particle, we can then easily do apply it to string theory. The “worldline formalism” is a . way to describe the relativistic quantum mechanics. T
防止
发表于 2025-3-23 14:45:28
Relativistic Stringstrings, or cosmic strings, which are essentially non-relativistic and as a result can have compression modes, along the string. Also, unlike them, they represent an idealization, and have zero thickness, i.e., they are truly one-dimensional, and moreover their endpoints will move at the speed of lig
伴随而来
发表于 2025-3-23 21:03:05
The Expanding Universe and the Big Bangquite far in the description of cosmology. This can be thought of as just a useful trick in order to get some simpler physical insight. In the next chapter, we will move on to the relativistic theory.
扩音器
发表于 2025-3-24 01:55:14
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抑制
发表于 2025-3-24 06:04:33
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integrated
发表于 2025-3-24 09:15:35
KK Compactification of Supergravity Modelsinors ., and also antisymmetric tensors .. The antisymmetric tensors are generalizations of the gauge fields (Maxwell fields) ., that have also a field strength, .and so satisfy a gauge invariance .The gauge invariant action for the antisymmetric tensor field is
跟随
发表于 2025-3-24 13:17:11
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UTTER
发表于 2025-3-24 17:55:21
The Relativistic Point Particlestandard way to describe relativistic quantum mechanics, but anything we can do with it, we can in principle do in the first quantized worldline formalism. We start with writing the action for the particle, on its worldline.
哀求
发表于 2025-3-24 19:00:18
Book 2019 known consistent theory of quantum gravity that can deal with the highest energy scales near the Planck energy, relevant for cosmology‘s beginning. As a result, only string theory can give a fully consistent picture of cosmological origins. This book describes the best current avenues for obtaining
VEN
发表于 2025-3-25 01:47:07
0168-1222 or most) relevant string cosmology models.Pedagogical treatm.Cosmology describes the evolution of the Universe and is based on a description of its beginning from quantum fluctuations. String theory is the only known consistent theory of quantum gravity that can deal with the highest energy scales n