公开(公告)号：US20230276717A1

公开(公告)日：2023-08-31

申请号：US18007765

申请日：2020-06-05

Applicant: NEC Corporation

Inventor： Akira MIYATA ,  Katsumi KIKUCHI ,  Suguru WATANABE ,  Takanori NISHI ,  Hideyuki SATOU ,  Tomohiro YAMAJI ,  Tsuyoshi YAMAMOTO ,  Yoshihito HASHIMOTO

IPC: H10N60/10 ,  G06N10/40

CPC classification number: H10N60/10 ,  G06N10/40

Abstract: Provided are an oscillator and a quantum computer capable of suppressing an occupied area of a circuit. An oscillator (300) includes a resonator (100) including a plurality of loop circuits in which a first superconducting line (112a), a first Josephson junction (111a), a second superconducting line (112b), and a second Josephson junction (111b) are annularly connected, and a magnetic field application circuit (200) including an electrode that goes around in a predetermined shape and configured to apply a magnetic field to the loop circuit, in which the electrode is arranged so as to face at least two of the loop circuits.

公开(公告)号：US20210201188A1

公开(公告)日：2021-07-01

申请号：US17115971

申请日：2020-12-09

Applicant: NEC CORPORATION

Inventor： Tomohiro YAMAJI ,  Tsuyoshi Yamamoto

IPC: G06N10/00 ,  H01L39/02 ,  H01L39/06

Abstract: A resonator, an oscillator, and a quantum computer capable of preventing oscillation conditions for generating a parametric oscillation from becoming complicated are provided. A resonator includes at least one loop circuit in which a first superconducting line, a first Josephson junction, a second superconducting line, and a second Josephson junction are connected in a ring shape, in which critical current values of the first and second Josephson junctions are different from each other.