John A. Smolin

John A. Smolin (born 1967) is an American physicist and Fellow of the American Physical Society at IBM's Thomas J. Watson Research Center.

John A. Smolin
Born1967 (age 53–54)
New York City
Alma materMassachusetts Institute of Technology (S.B., Physics, 1989)
University of California, Los Angeles (Ph.D., Physics, 1996) [1]
Known forQuantum cryptography, The Smolin Spiral
Scientific career
FieldsQuantum information theory
InstitutionsThomas J. Watson Research Center

Smolin is best known for his work in quantum information theory, where, with collaborators, he introduced several important techniques,[2] including entanglement distillation, for quantum error-correction and the faithful transmission of quantum information through noisy quantum channels, as well as for entanglement-assisted transmission of classical information. He helped elucidate the complex relations between classical and quantum capacities of various channels[3] as well as phenomena such as data hiding and data unlocking that have no analog in classical information theory.

Together with Charles H. Bennett he built the world's first working demonstration of quantum cryptography in 1989,[4] driven by software written by Francois Bessette, Gilles Brassard and Louis Salvail and implementing the BB84 quantum key distribution protocol.

Smolin coined the term "Church of the Larger Hilbert Space" to describe the habit of regarding every mixed state of a quantum system as a pure entangled state of a larger system, and every irreversible evolution as a reversible (unitary) evolution of a larger system.[5]

References
  1. "Profile: John Smolin"", American Physical Society
  2. Bennett, Charles H.; DiVincenzo, David P.; Smolin, John A.; Wooters, William K. (1996), "Mixed State Entanglement and Quantum Error Correction", Phys. Rev. A 54: 3824-3851
  3. D.P. DiVincenzo, P.W. Shor, and J. A. Smolin, "Quantum-channel capacity for very noisy channels", Phys. Rev. A, 1717 (1999)
  4. Bennett, Bessette, Brassard Salvial, and Smolin "Experimental Quantum Cryptography", J. of Cryptology 5, 3-28 (1992)
  5. "Church of the Larger Hilbert Space" article in Quantiki
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