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Quantum scattering on a cone revisited

Full text
Author(s):
Barroso, V. S. ; Pitelli, J. P. M.
Total Authors: 2
Document type: Journal article
Source: PHYSICAL REVIEW D; v. 96, n. 2, p. 6-pg., 2017-07-12.
Abstract

We revisit the scattering of quantum test particles on the conical (2 + 1)-dimensional spacetime and find the scattering amplitude as a function of the boundary conditions imposed at the apex of the cone. We show that the boundary condition is responsible for a purely analytical term in the scattering amplitude, in addition to those coming from purely topological effects. Since it is possible to have nonequivalent physical evolutions for the wave packet (each one corresponding to a different boundary condition), it seems crucial to have an observable quantity specifying which evolution has been prescribed. (AU)

FAPESP's process: 13/09357-9 - Physics and geometry of spacetime
Grantee:Alberto Vazquez Saa
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 16/07057-6 - Applications of the theory of self-adjoint extensions in Quantum Gravity
Grantee:João Paulo Pitelli Manoel
Support Opportunities: Regular Research Grants