Published November 15, 1992 | Version v1
Journal article Metadata-only

Simple quantum systems in spacetimes with closed timelike curves

Creators

  • 1. California Institute of Technology, Pasadena, California 91125 (United States)

Description

Three simple examples illustrate properties of path-integral amplitudes in fixed background spacetimes with closed timelike curves: nonrelativistic potential scattering in the Born approximation is nonunitary, but both an example with hard spheres and the exact solution of a totally discrete model are unitary

Additional details

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
46
Journal Issue
10
Journal Page Range
p. 4470-4476.
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
24020092
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
BORN APPROXIMATION; HAMILTONIANS; ISING MODEL; PERTURBATION THEORY; POTENTIAL SCATTERING; QUANTUM GRAVITY; QUANTUM MECHANICS; SPACE-TIME; UNITARITY
Descriptors DEC
CRYSTAL MODELS; ELASTIC SCATTERING; FIELD THEORIES; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MECHANICS; QUANTUM FIELD THEORY; QUANTUM OPERATORS; SCATTERING