Sandu Popescu
| Sandu Popescu | |
|---|---|
| Born | 1956 Oradea, Romania |
| Residence | U.K. |
| Fields | Physicist |
| Institutions | University of Bristol |
| Doctoral advisor | Yakir Aharonov |
| Known for |
Quantum nonlocality |
| Notable awards | 2011 John Stewart Bell Prize 2016 Dirac Medal |
Quantum nonlocality
Quantum teleportation
Sandu Popescu FRS (born 1956 in Oradea, Romania) is a Romanian-British physicist working in the foundations of quantum mechanics and quantum information.
Sandu Popescu is Professor of Physics at the University of Bristol since 1999. He studied with Yakir Aharonov, followed by post-doctoral positions with François Englert, and then with Abner Shimony and Bahaa Saleh. From 1996-99 he was Reader at the Isaac Newton Institute, University of Cambridge. In 2017 he was elected Fellow of the Royal Society.
Popescu’s main body of work is in the foundations of quantum mechanics and quantum information, where he was one of the pioneers of the field, and more recently in the foundations of statistical mechanics and quantum thermodynamics.
His most important contributions are in the area of quantum nonlocality. In collaboration with Daniel Rohrlich, simultaneously and independently from Nicolas Gisin, Popescu showed that non-locality is a generic property of nature: every entangled pure quantum state (i. e. almost every pure state) has nonlocal properties. In collaboration with Charles Bennett, Herbert Bernstein, and Benjamin Schumacher, he established the quantitative theory of entanglement by the discovery of entanglement concentration and dilution, and together with Bennett, Schumacher, Gilles Brassard, John Smolin, and William Wootters a method of entanglement purification (distillation). These works introduced the idea of entanglement manipulation by local operations and classical communication (LOCC), and introduced the notions of entanglement of distillation and entanglement of formation. He also proved that there is a unique measure of entanglement for pure bi-partite quantum states (the von Neuman entropy of the reduced density matrix).
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