Over the past three decades, the developing field of quantum information science has established that current encryption methods are fundamentally insecure, but also that photonic links could enable guaranteed-security. Quantum key distribution is now available commercially over short distances, and the race is on to build the first quantum computers that could “crack the internet”. In this talk Josh will give an overview of the field of quantum and post-quantum communications, survey the state of the art, and describe the challenges and opportunities in this area, for the coming years.
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Quantum Secure Communications
After obtaining his PhD in 2009, Josh stayed on at the University of Oxford’s Clarendon Laboratory as a departmental lecturer and then as a Royal Society University Research Fellow working on light-matter interactions. In 2017 he was appointed Reader in Photonics at the Centre for Photonics and Photonic Materials at the University of Bath where he is developing protocols for light storage based on Kerr interactions in warm vapours and Brillouin scattering in diamond. He currently leads the Photonics Workpackage for the EPSRC Networked Quantum Information Technologies Hub and is a co-founder of Veriqloud, a start-up developing quantum network applications.