Abstract: A method solves matrix problems and comprises an encoding step, wherein a matrix is transformed into a unitary matrix, by encoding the matrix with a unitary dilation theorem used as an encoding function; then an optical design step, wherein the unitary matrix is translated into a linear optical circuit, then an optical device is formed by the linear optical circuit, single-photon sources at input and single-photon detectors at output; then an analysis step, wherein the optical device is used for solving a problem related to the matrix, by analyzing the output state of the single-photon detectors. A system implements the method.

Abstract: A modular quantum data processing system includes at least: a first quantum data module, a second quantum data module, a quantum gate module, a quantum circuit router, a quantum channel module, a classical channel module, and a classical processing module. The quantum channel module includes a plurality of quantum channels, and the classical channel module includes a plurality of quantum channels.

Abstract: The method comprises the steps of A) equipping the end of the fiber with an added microstructure (MS) arranged so as to provide support on a surrounding structure forming a support (SE) distinct from the photonic device (PIL) and to prevent any contact with a sensitive surface (FA) of the photonic device, B) optimally aligning, in position and in angle, the fiber end with the sensitive surface, and C) exerting on the microstructure and/or the optical fiber a bearing pressure (P) against the surrounding support structure, maintaining an optimal spacing distance (D) and alignment between the fiber end and the sensitive surface.