Complementing the transmon by integrating a geometric shunt inductor
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866917802019913728 |
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| author | Fasciati, Simone D. Shteynas, Boris Campanaro, Giulio Bakr, Mustafa Cao, Shuxiang Chidambaram, Vivek Wills, James Leek, Peter J. |
| author_facet | Fasciati, Simone D. Shteynas, Boris Campanaro, Giulio Bakr, Mustafa Cao, Shuxiang Chidambaram, Vivek Wills, James Leek, Peter J. |
| contents | We realize a single-Josephson-junction transmon qubit shunted by a simple geometric inductor. We couple it capacitively to a conventional transmon and show that the ZZ interaction between the two qubits is completely suppressed when they are flux-biased to have opposite-sign anharmonicities. Away from the flux sweet spot of the inductively-shunted transmon, we demonstrate fast two-qubit interactions using first-order sideband transitions. The simplicity of this two-qubit-species circuit makes it promising for building large lattices of superconducting qubits with low coherent error and a rich gate set. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_10416 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Complementing the transmon by integrating a geometric shunt inductor Fasciati, Simone D. Shteynas, Boris Campanaro, Giulio Bakr, Mustafa Cao, Shuxiang Chidambaram, Vivek Wills, James Leek, Peter J. Quantum Physics We realize a single-Josephson-junction transmon qubit shunted by a simple geometric inductor. We couple it capacitively to a conventional transmon and show that the ZZ interaction between the two qubits is completely suppressed when they are flux-biased to have opposite-sign anharmonicities. Away from the flux sweet spot of the inductively-shunted transmon, we demonstrate fast two-qubit interactions using first-order sideband transitions. The simplicity of this two-qubit-species circuit makes it promising for building large lattices of superconducting qubits with low coherent error and a rich gate set. |
| title | Complementing the transmon by integrating a geometric shunt inductor |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2410.10416 |