Artur Ekert
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Artur Ekert (born 19 September 1961 in Wrocław, Poland) is Lee Kong Chian Centennial Professor at the National University of Singapore. From 2002 until early 2007 he was the Leigh-Trapnell Professor of Quantum Physics at the Department of Applied Mathematics and Theoretical Physics, Cambridge University. He earned his doctorate in physics at Oxford University (Wolfson College) in 1991.
Ekert is one of the pioneers of quantum cryptography. In his doctoral thesis he showed how quantum entanglement and non-locality can be used to distribute cryptographic keys with perfect security. His protocol for quantum crytography uses entangled photon states to encode the bits and relies on the fact that the information defining the encryption key only "comes into being" after measurements are completed by users.
For his work on entanglement based quantum key distribution he was awarded the 1995 Maxwell Medal and Prize of the Institute of Physics and the 2007 Hughes Medal of the Royal Society. He is also a co-recipient of the 2004 EU Descartes Prize. His 1991 paper on quantum key distribution using entangled photons is still the most cited paper in quantum cryptography.
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