公开(公告)号：IL298483A

公开(公告)日：2023-01-01

申请号：IL29848322

申请日：2022-11-22

Applicant: IBM CORP ,  AARON FINCK ,  JOHN BLAIR ,  APRIL CARNIOL ,  OLIVER DIAL ,  MUIR KUMPH

Inventor： AARON FINCK ,  JOHN BLAIR ,  APRIL CARNIOL ,  OLIVER DIAL ,  MUIR KUMPH

IPC: G06N10/00 ,  G06N10/20 ,  G06N10/40 ,  G06N10/70 ,  H03K19/0175 ,  H03K19/195

Abstract: Devices and/or computer-implemented methods to facilitate ZZ cancellation between qubits are provided. According to an embodiment, a device can comprise a coupler device that operates in a first oscillating mode and a second oscillating mode. The device can further comprise a first superconducting qubit coupled to the coupler device based on a first oscillating mode structure corresponding to the first oscillating mode and based on a second oscillating mode structure corresponding to the second oscillating mode. The device can further comprise a second superconducting qubit coupled to the coupler device based on the first oscillating mode structure and the second oscillating mode structure.

公开(公告)号：GB2556251B

公开(公告)日：2020-06-03

申请号：GB201800479

申请日：2016-05-23

Applicant: IBM

Inventor： OLIVER DIAL ,  MATTHIAS STEFFEN ,  DOUGLAS TEMPLETON MCCLURE III ,  JAY GAMBETTA

IPC: H01P7/00 ,  B82Y10/00 ,  G06N10/00 ,  G06N20/00 ,  H01L39/02 ,  H01L39/14 ,  H01L39/24 ,  H01P1/205

Abstract: A technique relates a superconducting microwave cavity. An array of posts has different heights in the cavity, and the array supports a localized microwave mode. The array of posts includes lower resonant frequency posts and higher resonant frequency posts. The higher resonant frequency posts are arranged around the lower resonant frequency posts. A first plate is opposite a second plate in the cavity. One end of the lower resonant frequency posts is positioned on the second plate so as to be electrically connected to the second plate. Another end of the lower resonant frequency posts in the array is open so as not to form an electrical connection to the first plate. Qubits are connected to the lower resonant frequency posts in the array of posts, such that each of the qubits is physically connected to one or two of the lower resonant frequency posts in the array of posts.

公开(公告)号：GB2556251A

公开(公告)日：2018-05-23

申请号：GB201800479

申请日：2016-05-23

Applicant: IBM

Inventor： OLIVER DIAL ,  MATTHIAS STEFFEN ,  DOUGLAS TEMPLETON MCCLURE III ,  JAY GAMBETTA

IPC: H01L39/14 ,  G06N99/00

Abstract: A technique relates a superconducting microwave cavity. An array of posts has different heights in the cavity (100), and the array supports a localized microwave mode. The array of posts includes lower resonant frequency posts (20) and higher resonant frequency posts (10). The higher resonant frequency posts (10) are arranged around the lower resonant frequency posts (20). A first plate (25) is opposite a second plate (30) in the cavity (100). One end of the lower resonant frequency posts (20) is positioned on the second plate (30) so as to be electrically connected to the second plate (30). Another end of the lower resonant frequency posts (20) in the array is open so as not to form an electrical connection to the first plate (25). Qubits (40) are connected to the lower resonant frequency posts (20) in the array of posts, such that each of the qubits (40) is physically connected to one or two of the lower resonant frequency posts (20) in the array of posts.