Patents by Inventor Hughes Pothier

Hughes Pothier 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).

  • Superconducting quantum-bit device based on Josephson junctions
    Patent number: 6838694
    Abstract: A superconducting quantum-bit device based on Josephson junction has a charge as a first principal degree of freedom assigned to writing and a phase as a second principal degree of freedom assigned to reading. The device comprises a Cooper-pair box comprising first and second Josephson junctions defining a charge island of the Cooper-pair box closing up onto a superconducting loop. A read circuit comprises a read Josephson junction JL inserted into the superconducting loop and having a Josephson energy Ej at least 50 times greater than the Josephson energy of each of the first and second Josephson junctions.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: January 4, 2005
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Daniel Esteve, Denis Vion, Michel Devoret, Cristian Urbina, Philippe Joyez, Hughes Pothier, Pierre-Francois Orfila, Abdelhahim Aassime, Audrey Cottet
  • Superconducting quantum-bit device based on josephson junctions
    Publication number: 20030207766
    Abstract: A superconducting quantum-bit device based on Josephson junction has a charge as a first principal degree of freedom assigned to writing and a phase as a second principal degree of freedom assigned to reading. The device comprises a Cooper-pair box comprising first and second Josephson junctions defining a charge island of the Cooper-pair box closing up onto a superconducting loop. A read circuit comprises a read Josephson junction JL inserted into the superconducting loop and having a Josephson energy Ej at least 50 times greater than the Josephson energy of each of the first and second Josephson junctions.
    Type: Application
    Filed: September 16, 2002
    Publication date: November 6, 2003
    Inventors: Daniel Esteve, Denis Vion, Michel Devoret, Cristian Urbina, Philippe Joyez, Hughes Pothier, Pierre-Francois Orfila, Abdelhahim Aassime, Audrey Cottet