A quantum computing system comprises an input port for receiving a modulated data stream comprising a plurality of bits. Orbital angular momentum processing circuitry receives the modulated data stream and applying at least one of at least three orbital angular momentum function modes to each of the plurality of bits of the modulated data stream to generate a qudit. The qudit comprises a quantum unit of information having any of d states where d has a value of at least 3. Each of the at least three orbital angular momentum function modes comprise separate orbital angular momentum states that are orthogonal to each other. A MicroElectroMechanical system (MEMS) circuitry associated with the orbital angular momentum processing circuitry generates a hologram for applying the at least one of the at least three orbital angular momentum function modes to each of the plurality of bits of the modulated data stream to generate the qudit. At least one quantum gate receives each of the qudits via at least one gate input and generates a quantum circuit output via at least one gate output responsive thereto. An output port for outputs the generated quantum circuit output.