On Modified Weyl-heisenberg Algebras, Noncommutativity Matrix-valued Planck Constant and Qm in Clifford Spaces

A novelWeyl-Heisenberg algebra in Clifford-spaces is constructed that is based on a matrix-valued H extension of Planck’s constant. As a result of this modified Weyl-Heisenberg algebra one will no longer be able to measure, simultaneously, the pairs of variables (x, px); (x, py); (x, pz); (y, px), ... with absolute precision. New Klein-Gordon and Dirac wave equations and dispersion relations in Clifford-spaces are presented. The latter Dirac equation is a generalization of the Dirac-Lanczos-Barut-Hestenes equation. We display the explicit isomorphism between Yang’s Noncommutative space-time algebra and the area-coordinates algebra associated with Clifford spaces. The former Yang’s algebra involves noncommuting coordinates and momenta with a minimum Planck scale λ (ultraviolet cutoff) and a minimum momentum p = h̄/R (maximal length R, infrared cutoff ). The double-scaling limit of Yang’s algebra λ → 0, R → ∞, in conjunction with the large n → ∞ limit, leads naturally to the area quantization condition λR = L = nλ ( in Planck area units ) given in terms of the discrete angular-momentum eigenvalues n. It is shown how Modified Newtonian dynamics is also a consequence of Yang’s algebra resulting from the modified Poisson brackets. Finally, another noncommutative algebra ( which differs from the Yang’s algebra ) and related to the minimal length uncertainty relations is presented . We conclude with a discussion of the implications of Noncommutative QM and QFT’s in Clifford-spaces.