Controlled-squeeze gate in superconducting quantum circuits
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866916675486482432 |
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| author | Del Grosso, Nicolás F. Cortiñas, Rodrigo G. Villar, Paula I. Lombardo, Fernando C. Paz, Juan Pablo |
| author_facet | Del Grosso, Nicolás F. Cortiñas, Rodrigo G. Villar, Paula I. Lombardo, Fernando C. Paz, Juan Pablo |
| contents | We present a method to prepare non-classical states of the electromagnetic field in a microwave resonator. It is based on a controlled gate that applies a squeezing operation on a SQUID-terminated resonator conditioned on the state of a dispersively coupled qubit. This controlled-squeeze gate, when combined with Gaussian operations on the resonator, is universal. We explore the use of this tool to map an arbitrary qubit state into a superposition of squeezed states. In particular, we target a bosonic code with well-defined superparity which makes photon losses detectable by non-demolition parity measurements. We analyze the possibility of implementing this using state-of-the-art circuit QED tools and conclude that it is within reach of current technologies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_08404 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Controlled-squeeze gate in superconducting quantum circuits Del Grosso, Nicolás F. Cortiñas, Rodrigo G. Villar, Paula I. Lombardo, Fernando C. Paz, Juan Pablo Quantum Physics Other Condensed Matter We present a method to prepare non-classical states of the electromagnetic field in a microwave resonator. It is based on a controlled gate that applies a squeezing operation on a SQUID-terminated resonator conditioned on the state of a dispersively coupled qubit. This controlled-squeeze gate, when combined with Gaussian operations on the resonator, is universal. We explore the use of this tool to map an arbitrary qubit state into a superposition of squeezed states. In particular, we target a bosonic code with well-defined superparity which makes photon losses detectable by non-demolition parity measurements. We analyze the possibility of implementing this using state-of-the-art circuit QED tools and conclude that it is within reach of current technologies. |
| title | Controlled-squeeze gate in superconducting quantum circuits |
| topic | Quantum Physics Other Condensed Matter |
| url | https://arxiv.org/abs/2408.08404 |