The Quantum Mellin transform
arXiv:quant-ph/0702107 · doi:10.1088/1367-2630/8/12/328
Abstract
We uncover a new type of unitary operation for quantum mechanics on the half-line which yields a transformation to ``Hyperbolic phase space''. We show that this new unitary change of basis from the position x on the half line to the Hyperbolic momentum , transforms the wavefunction via a Mellin transform on to the critial line . We utilise this new transform to find quantum wavefunctions whose Hyperbolic momentum representation approximate a class of higher transcendental functions, and in particular, approximate the Riemann Zeta function. We finally give possible physical realisations to perform an indirect measurement of the Hyperbolic momentum of a quantum system on the half-line.
23 pages, 6 Figures