High-fidelity operation of quantum photonic circuits
arXiv:1004.0326 · doi:10.1063/1.3497087
Abstract
We demonstrate photonic quantum circuits that operate at the stringent levels that will be required for future quantum information science and technology. These circuits are fabricated from silica-on-silicon waveguides forming directional couplers and interferometers. While our focus is on the operation of quantum circuits, to test this operation required construction of a spectrally tuned photon source to produce near-identical pairs of photons. We show non-classical interference with two photons and a two-photon entangling logic gate that operate with near-unit fidelity. These results are a significant step towards large-scale operation of photonic quantum circuits.
References in corpus (11)
- Quantum Computing
- Photonic quantum technologies
- Optical Quantum Computing
- Silica-on-Silicon Waveguide Quantum Circuits
- Fault-tolerant quantum computation with high threshold in two dimensions
- Towards fault-tolerant quantum computing with trapped ions
- Shor's quantum factoring algorithm on a photonic chip
- Manipulating multi-photon entanglement in waveguide quantum circuits
- How good must single photon sources and detectors be for efficient linear optical quantum computation?
- High-fidelity operation of quantum photonic circuits
- An Entanglement Filter