The Principle of the Fermionic Projector

Felix Finster University of Regensburg

Mathematical Physics mathscidoc:1609.22006

AMS/IP Studies in Advanced Mathematics, 35, 2006
The ``principle of the fermionic projector'' provides a new mathematical framework for the formulation of physical theories and is a promising approach for physics beyond the standard model. The book begins with a brief review of relativity, relativistic quantum mechanics and classical gauge theories, with the emphasis on the basic physical concepts and the mathematical foundations. The external field problem and Klein's paradox are discussed and then resolved by introducing the so-called fermionic projector, a global object in space-time which generalizes the notion of the Dirac sea. The mathematical core of the book is to give a precise definition of the fermionic projector and to employ methods of hyperbolic differential equations for its detailed analysis. The fermionic projector makes it possible to formulate a new type of variational principles in space-time. The mathematical tools for the analysis of the corresponding Euler-Lagrange equations are developed. A particular variational principle is proposed which gives rise to an effective interaction showing many similarities to the interactions of the standard model. The main chapters of the book are easily accessible for beginning graduate students in mathematics or physics. Several appendices provide supplementary material which will be useful to the experienced researcher.
quantum field theory, unified field theory, Planck scale physics, fermionic projector, Dirac equation, Yang-Mills equation, gauge theories
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  title={The Principle of the Fermionic Projector},
  author={Felix Finster},
  booktitle={AMS/IP Studies in Advanced Mathematics},
Felix Finster. The Principle of the Fermionic Projector. 2006. Vol. 35. In AMS/IP Studies in Advanced Mathematics.
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