Title:
OSCILLATION DEVICE, QUANTUM COMPUTER, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/014886
Kind Code:
A1
Abstract:
The present invention achieves a nonlinear oscillator in which loss at a first time point is suppressed and of which the state is easily read out at a second time point while suppressing the occupied area of a circuit. This oscillation device (1) comprises: a resonator (10) that includes a resonator (100) having a capacitor (120) and a loop circuit (110) in which a first superconducting line (101), a first Josephson junction (103), a second superconducting line (102), and a second Josephson junction (104) are connected in an annular shape, and a magnetic field generation unit (200) that applies a magnetic field to the loop circuit (110), and that performs parametric oscillation; a reading unit (12) which reads out the internal state of the oscillator (10); and a filter (13) which limits the transmission of signals in a predetermined frequency band. A circuit, in which the capacitor (120) and the loop circuit (110) are connected in an annular shape, and the reading unit (12) are connected via the filter (13).
Inventors:
YAMAMOTO TSUYOSHI (JP)
HASHIMOTO YOSHIHITO (JP)
HASHIMOTO YOSHIHITO (JP)
Application Number:
PCT/JP2020/025240
Publication Date:
January 28, 2021
Filing Date:
June 26, 2020
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H03B15/00; G06N10/00; H01L39/22
Foreign References:
| JP2019036625A | 2019-03-07 | |||
| JP2018011022A | 2018-01-18 | |||
| JP2019003975A | 2019-01-10 | |||
| JP2005527902A | 2005-09-15 | |||
| US20190156238A1 | 2019-05-23 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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