Simone Severini is an Italian-born British computer scientist. He is currently Professor of Physics of Information at

University College London , mottoeng = Let all come who by merit deserve the most reward , established = , type = Public research university , endowment = £143 million (2020) , budget = � ...

, and Director of

Quantum Computing Quantum computing is a type of computation whose operations can harness the phenomena of quantum mechanics, such as superposition, interference, and entanglement. Devices that perform quantum computations are known as quantum computers. Thou ...

Amazon Web Services Amazon Web Services, Inc. (AWS) is a subsidiary of Amazon.com, Amazon that provides Software as a service, on-demand cloud computing computing platform, platforms and Application programming interface, APIs to individuals, companies, and gover ...

Work

Severini worked in

quantum information science Quantum information science is an interdisciplinary field that seeks to understand the analysis, processing, and transmission of information using quantum mechanics principles. It combines the study of Information science with quantum effects in ...

and complex systems. Together with Adan Cabello and

Andreas Winter Andreas J. Winter (born 14 June 1971, Mühldorf, Germany) is a German mathematician and mathematical physicist at the Universitat Autònoma de Barcelona (UAB) in Spain. He received his Ph.D. in 1999 under Rudolf Ahlswede and Friedrich Götze a ...

, he defined a graph-theoretic framework for studying

quantum contextuality Quantum contextuality is a feature of the phenomenology of quantum mechanics whereby measurements of quantum observables cannot simply be thought of as revealing pre-existing values. Any attempt to do so in a realistic hidden-variable theory lead ...

, and together with Tomasz Konopka, Fotini Markopoulou, and

Lee Smolin Lee Smolin (; born June 6, 1955) is an American theoretical physicist, a faculty member at the Perimeter Institute for Theoretical Physics, an adjunct professor of physics at the University of Waterloo and a member of the graduate faculty of th ...

, he introduced a

random graph In mathematics, random graph is the general term to refer to probability distributions over graphs. Random graphs may be described simply by a probability distribution, or by a random process which generates them. The theory of random graphs ...

model of spacetime called quantum graphity. He served as an editor of

Philosophical Transactions of the Royal Society A ''Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences'' is a fortnightly peer-reviewed scientific journal published by the Royal Society. It publishes original research and review content in a wide r ...

. In 2015 he was one of the first scientific advisors of

Cambridge Quantum Computing Cambridge Quantum (CQ) is an independent quantum computing company, based in Cambridge, England. Founded in 2014, CQ builds tools for the commercialization of quantum technologies with a focus on quantum software and quantum cybersecurity. CQ has ...

, with

Béla Bollobás Béla Bollobás FRS (born 3 August 1943) is a Hungarian-born British mathematician who has worked in various areas of mathematics, including functional analysis, combinatorics, graph theory, and percolation. He was strongly influenced by Paul ...

, Imre Leader, and

Fernando Brandão Fernando Brandão (born 22 January 1983, Belo Horizonte, Brazil) is a Brazilian physicist and computer scientist working on quantum information and quantum computation. He is currently the Bren Professor of Theoretical Physics at the California I ...

. In network theory, he co-introduced the

Braunstein–Ghosh–Severini entropy In network theory, the Braunstein–Ghosh–Severini entropy (BGS entropy) of a network is the von Neumann entropy of a density matrix given by a normalized Laplacian matrix of the network. This definition of entropy does not have a clear thermodyna ...

, with applications to quantum gravity.

Publications

* * * *

References

Year of birth missing (living people) Living people British physicists Quantum physicists Academics of University College London {{UK-physicist-stub