Lorentz invariance, unitarity and UV-finiteness of QFT on noncommutative spacetime
Lorentz invariance, unitarity and UV-finiteness of QFT on noncommutative spacetime
Ultraviolet finite quantum field theory on even-dimensional noncommutative spacetime is formulated using coordinate coherent states. 2D spacetime is foliated into families of orthogonal, noncommutative, two planes. Lorentz invariance is recovered if one imposes a single noncommutative parameter θ in the theory. Unitarity is checked at the one-loop level and no …