公开(公告)号：GB2562979B

公开(公告)日：2019-04-17

申请号：GB201814344

申请日：2017-01-13

Applicant: IBM

Inventor： HANHEE PAIK ,  STEFAN FILIPP ,  LEV SAMUEL BISHOP ,  JAY GAMBETTA ,  JASON SCOTT ORCUTT

IPC: H01L39/02 ,  B82Y10/00 ,  B82Y20/00 ,  G02B6/293 ,  G02F1/01 ,  G02F1/03 ,  G06N10/00 ,  H01L27/18 ,  H01P7/06 ,  H01P7/08 ,  H01S3/08

Abstract: Transducers and methods of making the same include a substrate having a cavity with a diameter that supports whispering gallery modes at a frequency of an input signal. A focusing structure in the cavity focuses the electric field of the input signal. A resonator directly under the focusing structure has a crystalline structure that generates an electro-optic effect when exposed to electrical fields. An electric field of the input signal modulates an output signal in the resonator via the electro-optic effect.

公开(公告)号：GB2596255A

公开(公告)日：2021-12-22

申请号：GB202113681

申请日：2020-02-21

Applicant: IBM

Inventor： THILO HERMANN CURT STOEFERLE ,  ANDREAS FUHRER JANETT ,  STEFAN FILIPP

IPC: H10N60/01 ,  G06N10/00 ,  H10N60/85

Abstract: A method includes forming a capacitor pad (304A, 304B) for a nonlinear resonator. The method includes comparing a resonance frequency of the nonlinear resonator to a target frequency to determine whether the resonance frequency falls within a range of the target frequency. A device includes a first capacitor pad comprising a superconducting material, the first capacitor pad configured to couple to a first end of a logic circuit element. The device includes a second capacitor pad comprising a second superconducting material, the capacitor pad configured to couple to a second end of the logic circuit element. The second capacitor pad includes a first portion (306A, 306B); a second portion (308A, 308B); and a bridge (310A, 310B) configured to electrically connect the first portion (306A, 306B) and the second portion (308A, 308B).

公开(公告)号：GB2562979A

公开(公告)日：2018-11-28

申请号：GB201814344

申请日：2017-01-13

Applicant: IBM

Inventor： HANHEE PAIK ,  STEFAN FILIPP ,  LEV SAMUEL BISHOP ,  JAY GAMBETTA ,  JASON SCOTT ORCUTT

IPC: H01L39/02 ,  B82Y10/00 ,  B82Y20/00 ,  G02B6/293 ,  G02F1/01 ,  G02F1/03 ,  G06N99/00 ,  H01L27/18 ,  H01P7/06 ,  H01P7/08 ,  H01S3/08

Abstract: Transducers and methods of making the same include a substrate having a cavity with a diameter that supports whispering gallery modes at a frequency of an input signal. A focusing structure in the cavity focuses the electric field of the input signal. A resonator directly under the focusing structure has a crystalline structure that generates an electro-optic effect when exposed to electrical fields. An electric field of the input signal modulates an output signal in the resonator via the electro-optic effect.

公开(公告)号：GB2560675A

公开(公告)日：2018-09-19

申请号：GB201809926

申请日：2016-10-07

Applicant: IBM

Inventor： STEFAN FILIPP ,  JAY GAMBETTA

IPC: G06N99/00

Abstract: A coupling mechanism, method of activation and a square lattice. The coupling mechanism comprises two qubits (102,104) and a tunable coupling qubit (106) that activates an interaction between the two qubits (102,104) by modulation of a frequency of the tunable coupling qubit (106). The tunable coupling qubit (106) capacitively couples the two qubits (102,104). The tunable coupling qubit (106) is modulated at a difference frequency of the two qubits (102,104). The difference frequency may be significantly larger than an anharmonicity of the two qubits (102,104). The tunable coupling qubit (106) may be coupled to the two qubits (102,104) by two electrodes separated by a superconducting quantum interference device (SQUID) loop having two Josephson junctions or by a single electrode with a SQUID loop coupling to ground. The SQUID loop is controlled by an inductively-coupled flux bias line positioned at the center of the tunable coupling qubit.