Quantum meaning of classical field theory
r jackiw
Recent researches have shown that it is possible to obtain information about the physical content of nontrivial quantum field theories by semiclassical methods. This article reviews some of these investigations. We discuss how solutions to field equations, treated as classical, c-number nonlinear differential equations, expose unexpected states in the quantal Hilbert space with novel quantum numbers which arise from topological properties of the classical field' configuration or from the mixing of internal and space-time symmetries. Also imaginary-time, c -number solutions are reviewed. It is shown that they provide nonperturbative information about the vacuum sector of the quantum theory.
درجه (قاطیغوری(:
کال:
1977
خپرندویه اداره:
american physical society
ژبه:
english
صفحه:
26
ISBN 10:
0570570670
ISBN 13:
9780570570677
لړ (سلسله):
classic publication
فایل:
DJVU, 699 KB
IPFS:
,
english, 1977
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