Session UB07 - Superstrings and Novel Ideas.
ORAL session, Thursday morning, March 25
Room 214E, GWCC
Maximal-acceleration invariant quantum fields were recently formulated in terms of the maximal acceleration group and the differential geometric structure of the spacetime tangent bundle [1,2]. The simple case was addressed of a massive free scalar field in a flat Minkowski spacetime for which the bundle is also flat. The field was shown to have an automatic physically based regularization with an exponential spectral cutoff at the Planck mass. In the present work, massless quantum fields are considered as the zero-mass limit of massive fields and are shown to have an exponential spectral cutoff at the Planck frequency. [1] H. E. Brandt, "Quantum Fields in the Spacetime Tangent Bundle," Found. Phys. Lett., Vol. 11, 265 (1998). [2] H. E. Brandt, "Finslerian Fields in the Spacetime Tangent Bundle," invited paper to appear in Journal of Chaos, Solitons and Fractals, special issue on "Strings, M, F, S,...Theory" (1998).