冬眠
发表于 2025-3-28 17:30:11
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arthroplasty
发表于 2025-3-28 21:21:19
,A Wave Equation for Spin-½ Particles — The Dirac Equation,e probability density. At that time there were doubts concerning the Klein-Gordon equation, which did not yield such probability density . The charge density interpretation was not known at that time and would have made little physical sense, because π.and π.mesons as charged spin-0 particles had not yet been discovered.
蚀刻术
发表于 2025-3-28 23:50:03
Another Way of Constructing Solutions of the Free Dirac Equation: Construction by Lorentz Transformutions possess the correct behaviour in the nonrelativistic limit. We consider now the solutions of the free Dirac equation with a new approach better suited to the covariant formulation and, later on, for the field-theoretical applications.
绝缘
发表于 2025-3-29 04:53:01
Projection Operators for Energy and Spin,treatment of complicated expressions; especially the calculation of traces of products of many γ matrices. It is based on a ., i.e. a method to project a spinor with a given sign of energy and fixed polarization out of a general wave function or a wave packet. The appropriate operators which achieve this are called ..
alleviate
发表于 2025-3-29 08:27:47
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Culpable
发表于 2025-3-29 13:32:50
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Prostaglandins
发表于 2025-3-29 18:59:26
,Klein’s Paradox,p (Fig. 13.1). First we shall study this problem from the point of view of the one-particle interpretation of the Dirac equation and then, in Example 13.1, we shall look at the same problem using the framework of hole theory, understanding better the resulting situation, which looks paradoxical at first sight..
爱社交
发表于 2025-3-29 22:10:34
and beauty of modern theoretical physics - with mathematics, the most fundamental of sciences - using Walter Greiner‘s textbooks as their guide. The idea of developing a coherent, complete presentation of an entire field of science in a series of closely related textbooks is not a new one. Many olde
故意
发表于 2025-3-30 01:38:10
Textbook 1990 of modern theoretical physics - with mathematics, the most fundamental of sciences - using Walter Greiner‘s textbooks as their guide. The idea of developing a coherent, complete presentation of an entire field of science in a series of closely related textbooks is not a new one. Many older physicis
Foam-Cells
发表于 2025-3-30 06:57:31
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