Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2406.11770 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914836784349184 |
|---|---|
| author | Kumph, Muir Raftery, James Finck, Aaron Blair, John Carniol, April Carnevale, Santino Keefe, George A Arena, Vincent Hall, Shawn McKay, David Stehlik, George |
| author_facet | Kumph, Muir Raftery, James Finck, Aaron Blair, John Carniol, April Carnevale, Santino Keefe, George A Arena, Vincent Hall, Shawn McKay, David Stehlik, George |
| contents | Here, we report the experimental demonstration of a novel multi-mode linear bus interferometer (LBI) coupler in a six qubit superconducting quantum processor. A key feature of this coupler is an engineered multi-path interference which eliminates transverse coupling between qubits over a wide frequency range. This negligible static coupling is achieved without any flux bias tuning, and greatly reduces the impact of qubit frequency collisions. We achieve good simultaneous single qubit gate operation and low ZZ rates (below 600 Hz) across the device without staggering qubit frequencies, even in cases where qubits are as close as 10 MHz. Multi-qubit interactions are still possible through the coupler using microwave-driven resonator induced phase gates, which we utilize to demonstrate simultaneous two qubit gates with fidelities as high as 99.4% |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_11770 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Demonstration of RIP gates in a quantum processor with negligible transverse coupling Kumph, Muir Raftery, James Finck, Aaron Blair, John Carniol, April Carnevale, Santino Keefe, George A Arena, Vincent Hall, Shawn McKay, David Stehlik, George Quantum Physics Here, we report the experimental demonstration of a novel multi-mode linear bus interferometer (LBI) coupler in a six qubit superconducting quantum processor. A key feature of this coupler is an engineered multi-path interference which eliminates transverse coupling between qubits over a wide frequency range. This negligible static coupling is achieved without any flux bias tuning, and greatly reduces the impact of qubit frequency collisions. We achieve good simultaneous single qubit gate operation and low ZZ rates (below 600 Hz) across the device without staggering qubit frequencies, even in cases where qubits are as close as 10 MHz. Multi-qubit interactions are still possible through the coupler using microwave-driven resonator induced phase gates, which we utilize to demonstrate simultaneous two qubit gates with fidelities as high as 99.4% |
| title | Demonstration of RIP gates in a quantum processor with negligible transverse coupling |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2406.11770 |