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Quantum Field Theory: Where We Are

Klaus Fredenhagen, Karl-Henning Rehren, Erhard Seiler

hep-tharXiv:hep-th/0603155

Abstract

We comment on the present status, the concepts and their limitations, and the successes and open problems of the various approaches to a relativistic quantum theory of elementary particles, with a hindsight to questions concerning quantum gravity and string theory.

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