公开(公告)号：AU2021294837A1

公开(公告)日：2022-11-17

申请号：AU2021294837

申请日：2021-06-15

Applicant: IBM

Inventor： ZAJAC DAVID ,  STEHLIK JIRI ,  UNDERWOOD DEVIN ,  STEFFEN MATTHIAS

IPC: G06N10/00 ,  B82Y10/00 ,  H01L27/18 ,  H01L39/22

Abstract: Devices and/or computer-implemented methods to facilitate a quantum gate between qubits using a tunable coupler and a capacitor device are provided. According to an embodiment, a quantum coupler device can comprise a tunable coupler coupled between terminals of a same polarity of a first qubit and a second qubit, the tunable coupler configured to control a first coupling between the first qubit and the second qubit. The quantum coupler device can further comprise a capacitor device coupled to terminals of an opposite polarity of the first qubit and the second qubit, the capacitor device configured to provide a second coupling that is opposite in sign relative to the first coupling.