Waterloo Achieves Three-photon Entanglement in SC Cavity
Researchers at the Institute for Quantum Computing (IQC) at the University of Waterloo have generated three-photon entanglement on a superconducting chip. Their findings could lead to advances in quantum communication protocols like secret sharing and in quantum computing power.
Scientists from the Chalmers University of Technology, the U.S. National Institute of Standards and Technology (NIST), the Spanish National Research Council, and Nottingham University also participated in the research. The work is part of IQC’s Transformative Quantum Technology program and received partial funding from the Canada First Research Excellence Fund.
“The generation of the entangled state can be viewed as a simple algorithm or computation leading to the desired entangled output state,” commented Professor Chris Wilson of IQC. “In that sense, the work demonstrates that this platform can be used for doing quantum computation with entangled microwave photons. We will explore that in the coming years.
“We are also looking at these states as resources for long-range quantum sensing, such as quantum radar. In fact, we have a paper out on arXiv on ‘Quantum-Enhanced Noise Radar‘.”