The CQIF research group's contributions to the theories of quantum computation and quantum cryptography include pioneering work on the relationship between physics and computation and the qualitative distinction between classical and quantum computing, the invention of entanglement-based cryptography, collaborative work on the first demonstration of a quantum algorithm that outperforms all classical algorithms and on the development of quantum privacy amplification techniques which (it is now understood) allow efficient quantum cryptography over arbitrarily long distances, the first secure bit commitment protocol, and the discovery of secure cryptography based on the no-signalling principle.

Our research interests also currently include the relationship between the no-signalling principle and other aspects of quantum theory and applications of quantum information theory, foundational questions in quantum information theory, quantum theory, probability theory and quantum gravity, the theory of quantum channels, and novel cryptographic applications of quantum information.

More information can be gleaned from our most recent papers, and individual descriptions of research interests.