期刊
NATURE PHOTONICS
卷 9, 期 5, 页码 316-319出版社
NATURE RESEARCH
DOI: 10.1038/NPHOTON.2015.42
关键词
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资金
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan
- Nippon Telegraph and Telephone Corporation (NTT)
- Engineering and Physical Sciences Research Council (EPSRC)
- European Research Council (ERC)
- Photonic Integrated Compound Quantum Encoding (PICQUE)
- Breaking the Barriers of Optical Integration (BBOI)
- US Army Research Office (ARO) [W911NF-14-1-0133]
- US Air Force Office of Scientific Research (AFOSR)
- Royal Society Wolfson Merit Award
- Royal Academy of Engineering Chair in Emerging Technologies
- EPSRC [EP/K021931/1, EP/J017175/1, EP/L024020/1] Funding Source: UKRI
- Grants-in-Aid for Scientific Research [26247066] Funding Source: KAKEN
- Engineering and Physical Sciences Research Council [EP/K021931/1, EP/L024020/1, EP/J017175/1] Funding Source: researchfish
Encoding quantum information in continuous variables, as the quadrature of electromagnetic fields, is a powerful approach to quantum information science and technology(1). Continuousvariable entanglement (light beams in Einstein-PodolskyRosen, or EPR2, states) is a key resource for quantum information protocols(3) and enables hybridization between continuous-variable and single-photon discrete-variable qubit systems(4). However, continuous-variable systems are currently limited by their implementation in free-space optical networks, and the demand for increased complexity, low loss, high-precision alignment and stability, as well as hybridization, require an alternative approach. Here we present an integrated photonic implementation of the key capabilities for continuousvariable quantum technologies-the generation and characterization of EPR beams in a photonic chip. When combined with integrated squeezing and non-Gaussian operations, these results will open the way to universal quantum information processing with light.
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