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SIGMA 2 (2006), 031, 11 pages hep-th/0603020
https://doi.org/10.3842/SIGMA.2006.031
q-Deformed Bi-Local Fields II
Haruki Toyoda a and Shigefumi Naka b
a) Laboratory of Physics, College of Science and Technology Nihon University,
7-24-1 Narashinodai Funabashi-shi Chiba, Japan
b) Department of Physics, College of Science and
Technology Nihon University, 1-8-14 Kanda-Surugadai Chiyoda-ku Tokyo, Japan
Received December 01, 2005, in final form February 22, 2006; Published online March 02, 2006
Abstract
We study a way of q-deformation of the bi-local
system, the two particle system bounded by a relativistic harmonic
oscillator type of potential, from both points of view of mass
spectra and the behavior of scattering amplitudes. In our
formulation, the deformation is done so that P2, the square of
center of mass momentum, enters into the deformation parameters of
relative coordinates. As a result, the wave equation of the
bi-local system becomes nonlinear with respect to P2; then, the
propagator of the bi-local system suffers significant change
so as to get a convergent self energy to the second order.
The study is also made on the covariant q-deformation in four dimensional spacetime.
Key words:
q-deformation; bi-local system; harmonic oscillator; nonlinear wave equation.
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