Multiplexed Readout of Superconducting Qubits Using a 3D Re-entrant Cavity Filter
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arXiv
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| Autores principales: | , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866915072577634304 |
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| author | Bakr, Mustafa Fasciati, Simone D. Cao, Shuxiang Campanaro, Giulio Wills, James Alghadeer, Mohammed Piscitelli, Michele Shteynas, Boris Chidambaram, Vivek Leek, Peter J. |
| author_facet | Bakr, Mustafa Fasciati, Simone D. Cao, Shuxiang Campanaro, Giulio Wills, James Alghadeer, Mohammed Piscitelli, Michele Shteynas, Boris Chidambaram, Vivek Leek, Peter J. |
| contents | Hardware efficient methods for high fidelity quantum state measurements are crucial for superconducting qubit experiments, as qubit numbers grow and feedback and state reset begin to be employed for quantum error correction. We present a 3D re-entrant cavity filter designed for frequency-multiplexed readout of superconducting qubits. The cavity filter is situated out of the plane of the qubit circuit and capacitively couples to an array of on-chip readout resonators in a manner that can scale to large qubit arrays. The re-entrant cavity functions as a large-linewidth bandpass filter with intrinsic Purcell filtering. We demonstrate the concept with a four-qubit multiplexed device. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_14853 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Multiplexed Readout of Superconducting Qubits Using a 3D Re-entrant Cavity Filter Bakr, Mustafa Fasciati, Simone D. Cao, Shuxiang Campanaro, Giulio Wills, James Alghadeer, Mohammed Piscitelli, Michele Shteynas, Boris Chidambaram, Vivek Leek, Peter J. Quantum Physics Hardware efficient methods for high fidelity quantum state measurements are crucial for superconducting qubit experiments, as qubit numbers grow and feedback and state reset begin to be employed for quantum error correction. We present a 3D re-entrant cavity filter designed for frequency-multiplexed readout of superconducting qubits. The cavity filter is situated out of the plane of the qubit circuit and capacitively couples to an array of on-chip readout resonators in a manner that can scale to large qubit arrays. The re-entrant cavity functions as a large-linewidth bandpass filter with intrinsic Purcell filtering. We demonstrate the concept with a four-qubit multiplexed device. |
| title | Multiplexed Readout of Superconducting Qubits Using a 3D Re-entrant Cavity Filter |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2412.14853 |