Patents by Inventor Yohei IBE

Yohei IBE 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 information processing method for computing transition amplitude, classical computer, quantum computer, and hybrid system
    Patent number: 11900213
    Abstract: A quantum computer executes quantum measurement of <?1|Pi|?2>, <?1|Uij,+|?2>, <?1|Uij,?|?2>, <?1|Pj|?2>, and <?1|PiPj|?2< below based on a quantum state pair configured by a first quantum state ?1 and a second quantum state ?2, and outputs measurement results of the quantum measurement. A classical computer computes a transition amplitude |<?1|A|?2>|2 based on measurement results for <?1|Pi|?2>, <?1|Uij,+|?2>, <?1|Uij,?|?2>, <?1|Pj|?2>, and <?1|PiPj|?2>, wherein A is a physical quantity for computation of transition amplitude, i and j are indices for identifying a and P, a is a real number, P is a tensor product of a Pauli matrix, U is a unitary gate, and <?1|?2>=0.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: February 13, 2024
    Assignee: QUNASYS INC.
    Inventors: Yohei Ibe, Yuya Nakagawa, Takahiro Yamamoto, Kosuke Mitarai
  • QUANTUM INFORMATION PROCESSING METHOD FOR COMPUTING TRANSITION AMPLITUDE, CLASSICAL COMPUTER, QUANTUM COMPUTER, AND HYBRID SYSTEM
    Publication number: 20220044141
    Abstract: A quantum computer executes quantum measurement of <?1|Pi|?2>, <?1|Uij,+|?2>, <?1|Uij,?|?2>, <?1|Pj|?2>, and <?1|PiPj|?2< below based on a quantum state pair configured by a first quantum state ?1 and a second quantum state ?2, and outputs measurement results of the quantum measurement. A classical computer computes a transition amplitude |<?1|A|?2>|2 based on measurement results for <?1|Pi|?2>, <?1|Uij,+|?2>, <?1|Uij,?|?2>, <?1|Pj|?2>, and <?1|PiPj|?2>, wherein A is a physical quantity for computation of transition amplitude, i and j are indices for identifying a and P, a is a real number, P is a tensor product of a Pauli matrix, U is a unitary gate, and <?1|?2>=0.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 10, 2022
    Applicant: QUNASYS INC.
    Inventors: Yohei IBE, Yuya NAKAGAWA, Takahiro YAMAMOTO, Kosuke MITARAI