1998/08/19 by Andrzej Z. Gorski, Jacek Szmigielski
Physics and Astronomy · #hep-th #quant-ph
published as Acta Phys.Polon. B31 (2000) 789-799 · 10 pages, LaTeX+RevTeX
arxiv created 1998/08/19 · arxiv updated 2009/11/30
We construct a class of representations of the Heisenberg algebra in terms of the complex shift operators subject to the proper continuous limit imposed by the correspondence principle. We find a suitable Hilbert space formulation of our construction for two types of shifts: (1) real shifts, (2) purely imaginary shifts. The representations involving imaginary shifts are free of spectrum doubling. We determine the corresponding coordinate and momentum operators satisfying the canonical commutation relations. The eigenvalues of the coordinate operator are in both cases discrete.