A method and apparatus for quantum computing. A computer-program source code, data, and unsubstantiated output variables are converted into a class of computable functions by a program compiler. The computable functions are encoded, and a continualization method is applied to the encoded functions to determine a first-order, time-dependent, differential equation. Variational calculus is employed to construct a Lagrangian whose minimum geodesic is the solution for the first-order, time-dependent, differential equation. The Lagrangian is converted into a quantum, canonical, Hamiltonian operator which is realized as an excitation field via an excitation generator. The excitation field is repeatedly applied to a quantum processor consisting of a lattice of polymer nodes to generate an intensity-versus-vibrational-frequency spectrum of the lattice nodes. The average vibrational spectrum intensity values are used as coefficients in an approximating polynomial of the encoding function to determine the substantiated output variables, or program output.
A tomography appliance and method for a tomography appliance make it possible to calculate, in a simple and efficient manner, detector-element-related coefficients of an intensity function dependent on the detector output signal and to calculate the X-ray-emitter-related coefficients of an intensity function dependent on an X-ray emitter input value. This is done on the basis of measured detector output signals and at least one X-ray emitter input value, such that the intensity which acts precisely on the respective detector element can be determined from X-ray radiation originating from the X-ray emitter.