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Classical and quantum scattering theory for linear scalar fields on the Schwarzschild metric. II. (English) Zbl 0608.53065

An alternate treatment of the results of paper I [same title, preprint] is given. As in that paper, the Unruh boundary condition is formulated, the Unruh vacuum is defined as a state satisfying this boundary condition, and the thermal character of the state is exhibited. The present work differs in that it uses the double-wedge region of the Kruskal manifold and defines and uses a precise notion of distinguished modes.

MSC:

53B50 Applications of local differential geometry to the sciences
83C47 Methods of quantum field theory in general relativity and gravitational theory
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[1] DOI: 10.1103/PhysRevD.14.870
[2] DOI: 10.1016/0375-9601(76)90178-X
[3] DOI: 10.1007/BF00759679 · Zbl 0618.35088
[4] DOI: 10.1088/0264-9381/3/1/010
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