Patents by Inventor Valerio Scarani

Valerio Scarani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Quantum cryptography protocol
    Patent number: 7359513
    Abstract: An apparatus and method for implementing a quantum cryptography system encoding bit values on approximations of elementary quantum systems with provable and absolute security against photon number splitting attacks. The emitter encodes the bit values onto pairs of non-orthogonal states belonging to at least two sets, and such that there does not exist a single quantum operation allowing to reduce the overlap of the states in all the sets simultaneously.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: April 15, 2008
    Assignee: Universite de Geneve
    Inventors: Nicolas Gisin, Antonio Acin, Valerio Scarani, Grégoire Ribordy
  • Quantum cryptography protocol
    Publication number: 20060120529
    Abstract: An apparatus and method for implementing a quantum cryptography system encoding bit values on approximations of elementary quantum systems with provable and absolute security against photon number splitting attacks. The emitter encodes the bit values onto pairs of non-orthogonal states belonging to at least two sets, and such that there does not exist a single quantum operation allowing to reduce the overlap of the states in all the sets simultaneously.
    Type: Application
    Filed: November 12, 2003
    Publication date: June 8, 2006
    Inventors: Nicolas Gisin, Antonio Acin, Valerio Scarani, Gregoire Ribordy