Patent Document ID: 20170264373
Application ID: 15424563
Patent Flag: 0

Claim One:
1. An optical circuit for solving Ising-model using quantum annealing comprising: a plurality of optical input ports for receiving a plurality of single photons, respectively; a first plurality of optical programmable beam splitters for splitting the plurality of single photons, respectively to generate a first plurality of split photons; a plurality of optical switches for selecting the first plurality of split photons or output photons output from respective optical output ports of the optical circuit, respectively to generate a plurality of selected photons; a second plurality of optical programmable beam splitters for splitting the plurality of selected photons, respectively to generate a second plurality of split photons; a first plurality of optical linear photon shifting devices for phase shifting of the second plurality of split photons, respectively to generate a first plurality of phase shifted photons; a third plurality of optical programmable beam splitters for splitting the first plurality of phase shifted photons, respectively to generate a third plurality of split photons; a second plurality of optical linear photon shifting devices for phase shifting of the third plurality of split photons, respectively to generate a second plurality of phase shifted photons; and a plurality of optical cross-phase modulators for implementing a quadratic portion of the Ising-model, wherein outputs of the plurality of optical cross-phase modulators are switched by the plurality of optical switches to respective inputs of the second plurality of optical programmable beam splitters or to respective inputs of the optical output ports to be output from the optical circuit, respectively.