ar X iv : h ep - t h / 06 03 15 5 v 1 2 0 M ar 2 00 6 Quantum Field Theory : Where We Are
نویسنده
چکیده
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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