Patents by Inventor Jonatan BRASK

Jonatan BRASK 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).

  • Method and device for quantum random number generation
    Patent number: 11620107
    Abstract: The invention is directed to a Quantum Random Number Generator comprising an emitting device (110) triggered by a signal representing an input bit x and adapted to generate and send a physical system (130) characterized by one of two possible quantum states determined by said input bit x, a measurement device (120) adapted to detect said physical system, to identify the quantum state of said physical system through an unambiguous state discrimination measurement and to generate an output b first representing whether the quantum state has been identified or not and, if it has been identified, which quantum state among the two possible quantum states was detected by the unambiguous state discrimination measurement to a processing device (140), the processing device (140) being adapted to estimate the entropy of the output b given the probabilities p(b|x) representing the probability of observing output b for a state preparation x, and a randomness extraction device (150) adapted to extract final random bit stre
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: April 4, 2023
    Assignee: UNIVERSITÉ DE GENÈVE
    Inventors: Anthony Christophe Mickaël Martin, Nicolas Brunner, Hugo Zbinden, Jonatan Brask, Joseph Bowles
  • METHOD AND DEVICE FOR QUANTUM RANDOM NUMBER GENERATION
    Publication number: 20190243611
    Abstract: The invention is directed to a Quantum Random Number Generator comprising an emitting device (110) triggered by a signal representing an input bit x and adapted to generate and send a physical system (130) characterized by one of two possible quantum states determined by said input bit x, a measurement device (120) adapted to detect said physical system, to identify the quantum state of said physical system through an unambiguous state discrimination measurement and to generate an output b first representing whether the quantum state has been identified or not and, if it has been identified, which quantum state among the two possible quantum states was detected by the unambiguous state discrimination measurement to a processing device (140), the processing device (140) being adapted to estimate the entropy of the output b given the probabilities p(b|x) representing the probability of observing output b for a state preparation x, and a randomness extraction device (150) adapted to extract final random bit stre
    Type: Application
    Filed: October 6, 2017
    Publication date: August 8, 2019
    Applicant: Université de Genève
    Inventors: Anthony Christophe Mickaël MARTIN, Nicolas BRUNNER, Hugo Zbinden, Jonatan BRASK, Joseph BOWLES