Serial-parallel conversion for single photons with heralding signals
Year: 2017
Type: article
Abstract: We present serial-parallel conversion for a heralded single photon source (heralded SPS). We theoretically show that with the heralding signal, the serial-parallel converter can route a stream of n photons to n different spatial modes more efficiently than is the case without using a heralding signal. We also experimentally demonstrate serial-parallel conversion for two photons generated from a heralded SPS. We achieve a conversion efficiency of 0.533 \pm 0.003, which exceeds the maximum achievable efficiency of 0.5 for serial-parallel conversion using unheralded photons, and is double the efficiency (0.25) for that using beamsplitters. When the losses in the optical converter are corrected for, the efficiency of the current setup can be increased up to 0.996 \pm 0.006.
Source: Optics Express
DOI: 10.1364/oe.25.032443
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
Funders: Ministry of Education, Culture, Sports, Science and Technology, Research Foundation for Opto-Science and Technology, Japan Society for the Promotion of Science, Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Precursory Research for Embryonic Science and Technology
Awards: G1323830098, Realization of boson sampling using photons, 多光子量子干渉による「ボソンサンプリング」の実現, G6718509927, Realization and Application of Large-scale Quantum Entangled States Using Photonic Quantum Circuits, Toward the experimental verification of CS modified gravity using photonic interferometers, G7879866177, G8684802150
OpenAlex ID: W2773252751