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Q: Fachverband Quantenoptik und Photonik
Q 40: Quantum Optics and Nuclear Quantum Optics II
Q 40.8: Vortrag
Mittwoch, 12. März 2025, 16:15–16:30, AP-HS
Relation between optical quantum computers and quantum computers — •Jannes Ruder1 and Hans-Otto Carmesin1,2,3 — 1Gymnasium Athenaeum, Harsefelder Straße 40, 21680 Stade — 2Studienseminar Stade, Bahnhofstr. 5, 21682 Stade — 3Universität Bremen, Fachbereich 1, Postfach 330440, 28334 Bremen
Quantum computers use linear superposition and entanglement, in order to solve appropriate problems much faster than electronic computers. Some optical quantum computers use the qubits the orbital angular momentum and polarization, as well as the universal set of quantum gates consisting of the Hadamard gate, the CNOT - gate and the π/4 - gate.
While the light sources of quantum computers are single photon sources, the light sources of optical computers are lasers. Accordingly, optical computers can be built in a more straight forward, cheap and elegant manner than optical quantum computers. So the question arises, whether optical computers can solve tasks at a rapidity similar to that of optical quantum computers.
For it, we show theoretically and experimentally that optical computers can use the same above mentioned qubits and the same universal set of quantum gates as optical quantum computers.
Keywords: Quantum Computing