ZZ 상호작용 감소를 위한 멀티-공진 결합 아키텍처들

• Main Authors: SRINIVASAN SRIKANTH, KANDALA ABHINAV, MCKAY DAVID
• Format: Patent
• Language: Korean
• Published: 10.01.2023
• Subjects: BASIC ELECTRONIC CIRCUITRY; CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRICITY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; NANOTECHNOLOGY; PERFORMING OPERATIONS; PHYSICS; PULSE TECHNIQUE; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

ZZ 상호작용을 감소시키면서 ZX 상호작용을 보존하기 위한 멀티-공진 커플러들을 용이하게 하는 시스템들 및 기술들이 제공된다. 다양한 실시예들에서, 제1 큐비트는 제1 동작 주파수를 가질 수 있고, 제2 큐비트는 제2 동작 주파수를 가질 수 있으며, 멀티-공진 아키텍처는 상기 제1 큐비트를 상기 제2 큐비트에 결합할 수 있다. Systems and techniques that facilitate multi-resonant couplers for preserving ZX interaction while reducing ZZ interaction are provided. In various embodiments, a first qubit can have a first operational frequency and a second qubit can have a second operational frequency, and a multi-resonant architecture can couple the first qubit to the second qubit. In various embodiments, the multi-resonant architecture can comprise a first resonator and a second resonator. In various cases, the first resonator can capacitively couple the first qubit to the second qubit, and a second resonator can capacitively couple the first qubit to the second qubit. In various aspects, the first resonator and the second resonator can be in parallel. In various instances, the first resonator can have a first resonant frequency less than the first operational frequency and the second operational frequency, and the second resonator can have a second resonant frequency greater than the first operational frequency and the second operational frequency. In various other embodiments, the multi-resonant architecture can comprise a resonator, a first end of which can be capacitively coupled to the first qubit and to the second qubit, and a second end of which can be coupled to ground. In various instances, the resonator can have a first harmonic less than the first operational frequency and the second operational frequency, and can have a second harmonic greater than the first operational frequency and the second operational frequency. In various other embodiments, the multi-resonant architecture can comprise a resonator and a direct coupler. In various embodiments, the resonator and the direct coupler can both capacitively couple the first qubit to the second qubit, and the resonator and the direct coupler can be in parallel. In various cases, the direct coupler can couple opposite pads of the first qubit and the second qubit. In various embodiments, a first end of the resonator can be capacitively coupled to the first qubit and the second qubit, a second end of the resonator can be coupled to ground, and the direct coupler can capacitively couple common pads of the first qubit and the second qubit.