Nec Corporation

Nippon Telegraph and Telephone Corporation

Asahi Glass Company, Limited

Agc Inc.

Thk Co., Ltd.

Kabushiki Kaisha Toshiba

Hitachi, Ltd.

Denso Corporation

Matsushita Electric Works, Ltd.

Hitachi High-tech Corporation

Riken Corporation

Sumco Corporation

Bridgestone Tire Company Limited

Sony Group Corporation

Sony Electronics Inc

Tsuyoshi Yamamoto

Yoshihito Hashimoto

Tomohiro Yamaji

Yuzo Ishii

Yuichi Okabe

Kenichi Ishii

Fumitaka Terashima

Katsuhiko Hirabayashi

Hideaki Koizumi

Katsumi Kikuchi

Hayato Goto

Katsuhiro Suzuki

Toshishige Shimamura

Hidekazu Michioka

Tomihiro Hashizume

Naoki Hashimoto

Yoshikazu Kondo

Kazuyoshi Iida

Masaki Ito

Suguru Watanabe

Ryosuke Suzuki

Tomozumi Murata

Takuya Horie

Takumi Shibata

Satoshi Tokunaga

Tomohiro Tsuji

Takashi Yamawaki

Ryusuke Nakanishi

Syouji Nogami

Takanori Nishi

Yasunobu Nakamura

Manabu Sato

Mitsumasa Wada

Yutaka Kiyosawa

Takafumi Inoue

Hideyuki Satou

Seiji Heike

Allison Marlene Chaney

Kohei Matsuura

Kohji Tabata

Hitoshi Goto

Julia Anne Framel

Kouji Tabata

Fumiaki Morita

Seiji Morimoto

Jaw-Shen Tsai

Kunihisa Takahashi

Kentaro Hikomoto

Hiroyuki Hojo

Kazuma Igari

Koji Tabata

Masakazu Okabe

Tetsuji Murata

Fumitaka Ozaki

Nobuyuki Ikegami

Takashi Sakae

Mitsurou Watanabe

Akira Nambu

Masayasu Yamaguchi

Akio Nagata

Shigeki Hino

Norihisa Taniguchi

Haruto Sanda

Hirofumi Yamazaki

Shintaro Kojima

Mitsuhiro Teramachi

Junichi Kuwabara

Yoichi Shinomiya

Yohei Komatsu

Youhei Komatsu

Provided are an oscillator and a quantum computer capable of suppressing an occupied area of a circuit. An oscillator () includes a resonator () including a plurality of loop circuits in which a first superconducting line (), a first Josephson junction (), a second superconducting line (), and a second Josephson junction () are annularly connected, and a magnetic field application circuit () 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.

Oscillator and quantum computer

A sample holder includes: a pedestal made of metal; and a PCB (Printed Circuit Board) placed on the pedestal. The PCB includes a through opening that penetrates from a front surface to a rear surface of the PCB. The pedestal includes a cavity bottomed and with a top of the pedestal opened, the cavity formed at a portion corresponding to directly under the through opening on a side of the pedestal on which the PCB is placed. As a configuration on the side on which the PCB is placed, viewed from above, a part of the cavity is protruded outward from the through opening.

Sample holder and superconducting quantum computer

An oscillation apparatus includes: an oscillator including a resonator and a magnetic-field generation unit, the resonator including a loop circuit and a capacitor, the loop circuit including a first superconducting line, a first Josephson junction, a second superconducting line, and a second Josephson junction connected in a ring shape, the magnetic-field generation unit being configured to apply a magnetic field to the loop circuit, and the oscillator being configured to perform parametric oscillation; a read-out unit for reading out an internal state of the oscillator; and a circuit component in which a coupling strength between the oscillator and the read-out unit is variable. The oscillator is connected to the read-out unit through the circuit component.

Oscillation apparatus, quantum computer, and control method

A sample holder includes a base comprising a support structure and a printed circuit board (PCB) in contact with the base. The PCB has a through hole. The PCB has a cavity in at least a part of the base below the through hole. The support structure that supports a surface of a chip and is electrically connected to the base. The support structure is disposed in the cavity. At least a part of the section supporting the chip in the support structure is not parallel to the back surface of the chip.

An image capturing unit captures an image of a surface of a member treated by a surface treatment unit. A comparison unit obtains a correlation coefficient between a reference image stored in a storage unit and the image captured by the image capturing unit. A cross-correlation coefficient between power spectra of the reference image and the image captured by the image capturing unit is obtained. A control unit stops a surface treatment performed by the surface treatment unit when the correlation coefficient obtained by the comparison unit reaches a set value.

Surface processing system

A sample holder includes a base comprising a support structure and a printed circuit board (PCB) in contact with the base. The PCB includes: a dielectric; a front-surface ground (GND) formed on a front surface of the dielectric; a back-surface GND formed on a back surface of the dielectric; a through hole penetrating from the front-surface GND to the back-surface GND, the through hole in which a chip is disposed, and a conductor that electrically connects the front-surface GND and the back-surface GND on an end face of the through hole. At least a part of the base below the through hole has a cavity. The support structure that supports a surface of the chip and is electrically connected to the base. The support structure is disposed in the cavity.

A calibration method, a calibration apparatus, and a program capable of estimating a degree of signal loss of an input signal supplied to an oscillator are provided. The calibration method includes: outputting an input signal to be input to an oscillator to be calibrated that includes a resonator and performs parametric oscillation, from a signal generator connected to the resonator via a transmission path while sweeping a frequency or a power of this input signal; acquiring distribution data of an intensity of a reflection signal based on measurement of the intensity of the reflection signal from the oscillator in response to the input signal; and estimating a degree of signal loss by comparing the distribution data acquired by the measurement with the distribution data theoretically obtained in which a value of the degree of the signal loss of the transmission path is assumed.

Calibration method, calibration apparatus, and program

A resonator, an oscillator, and a quantum computer in which the area occupied by the circuit can be reduced is provided. A resonator () includes a 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, and a capacitor (). The capacitor () and the loop circuit () are connected in a ring shape.

Resonator, oscillator, and quantum computer

The present invention relates to a window glass for vehicle, which includes a glass plate and an antenna provided to the glass plate and capable of receiving electromagnetic waves of AM broadcasting and FM broadcasting, in which the antenna includes an antenna element and a feeding portion electrically connected to the antenna element, the antenna element lies at a distance of longer than 20 mm from a metallic portion of the vehicle in a vehicle-mounted state, the antenna element includes at least one horizontal portion extending in an approximately horizontal direction in the vehicle-mounted state, the horizontal portion has an open end or has a bent portion bending apart therefrom which has an open end, and the horizontal portion has a total element length that is at least 3/4 of an overall length of the antenna element.

Window glass for vehicle

A terminal mounted in advance on a battery of an instrument that is a management target wirelessly transmits a battery state obtained by detecting an electric property related to a remaining battery amount of the battery and a terminal ID for identifying the terminal, and a management device displays remaining amount information related to the battery remaining amount on a screen based on the terminal ID and the battery state received from the terminal. This allows a user to easily figure out the remaining amount of a battery being used in an existing instrument.

System and method for management of remaining battery capacity by wirelessly transmitting terminal id of terminal on battery

An oscillation apparatus includes: an oscillator including a resonator and a magnetic-field generating unit, the resonator including a loop circuit and a capacitor, the loop circuit including a first superconducting line, a first Josephson junction, a second superconducting line, and a second Josephson junction connected in a ring shape, the magnetic-field generating unit being configured to apply a magnetic field to the loop circuit, and the oscillator being configured to perform parametric oscillation; a read-out unit for reading out an internal state of the oscillator; and a filter configured to restrict transmission of a signal in a predetermined frequency band. A circuit in which the capacitor and the loop circuit are connected in a ring shape is connected to the read-out unit through the filter.

An oscillator in which crosstalk can be reduced is provided. An oscillator includes a SQUID, a transmission line connected to the SQUID, a ground plane, and a first connection circuit disposed in a vicinity of a node of an electric field of a standing wave that is generated when the oscillator is oscillating, the first connection circuit connecting parts of the ground plane located on both sides of the transmission line to each other.

Oscillator

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.

Growing community of inventors

Tokyo, Japan

Tsuyoshi Yamamoto