In non-relativistic quantum mechanics, the propagator gives the probability amplitude for a particle to travel from one spatial point (x') at one time (t') to another spatial point (x) at a later time (t).Ĭonsider a system with Hamiltonian H. There is an Open Access version for this licensed article that can be read free of charge and without license restrictions.
the apparent superluminal propagation of initially localized particles. 3.2 Green's functions for the Klein–Gordon equation Halliwell, Ortz Published 4 November 1992 Physics, Medicine Physical review.No meaningful frames can be attached to the. Specifically, we prove that: For several reasonable choice of the 'preferred frame' in which the superluminal signal should travel, the speed of this signal should be several powers of ten times the speed of light 1. 3.1.2 Positive and negative frequency parts (cut propagators) Halliwell In the quantization of simple cosmological models (minisuperspace models) described by the Wheeler-DeWitt equation, an important step is the construction, from the wave function. Jonathan Halliwell: Decoherence of histories by local conservation and.3.1 Solutions to the Klein–Gordon equation.M12 5RW SUPERLUMINAL LABS LTD, 64 New Cavendish Street, London, W1G 8TB. theory are violated (resulting in superluminal signals and violations of Heisenbergs uncertainty principle). Registered company 13290997 HALLIWELL MCCREERY HOSPITALITY Ltd 5 Priestnall. 1.1 Basic examples: propagator of free particle and harmonic oscillator Jonathan Halliwell, Imperial College London.