Deterministic two-photon C-Z gate with the two-photon quantum Rabi model
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arXiv
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| Hauptverfasser: | , , , , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| author | Tang, Jia-Cheng Zhao, Jin Yang, Haitao Tian, Junlong Tang, Pinghua Wang, Shuai-Peng Lamata, Lucas Peng, Jie |
| author_facet | Tang, Jia-Cheng Zhao, Jin Yang, Haitao Tian, Junlong Tang, Pinghua Wang, Shuai-Peng Lamata, Lucas Peng, Jie |
| contents | We propose a scheme for realizing a deterministic two-photon C-Z gate based on variants of the two-photon quantum Rabi model (QRM), which is feasible within the framework of circuit QED. We begin by utilizing the two-photon interaction to implement the nonlinear sign (NS) gate, and subsequently, we construct the C-Z gate following the KLM scheme. We consider three different regimes: the strong coupling regime, the perturbative ultrastrong coupling regime, and the large detuning regime. Our results indicate that the C-Z gate operates fast with high fidelity, and is robust against decoherence. We also show the photonic state in the waveguide can be input into the circuit QED system through a variable coupler, and released after interaction with almost the same waveform except for a $π$-phase shift. Our scheme offers a suitable approach for achieving fast and deterministic two-photon quantum gates via light-matter interactions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_03762 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Deterministic two-photon C-Z gate with the two-photon quantum Rabi model Tang, Jia-Cheng Zhao, Jin Yang, Haitao Tian, Junlong Tang, Pinghua Wang, Shuai-Peng Lamata, Lucas Peng, Jie Quantum Physics We propose a scheme for realizing a deterministic two-photon C-Z gate based on variants of the two-photon quantum Rabi model (QRM), which is feasible within the framework of circuit QED. We begin by utilizing the two-photon interaction to implement the nonlinear sign (NS) gate, and subsequently, we construct the C-Z gate following the KLM scheme. We consider three different regimes: the strong coupling regime, the perturbative ultrastrong coupling regime, and the large detuning regime. Our results indicate that the C-Z gate operates fast with high fidelity, and is robust against decoherence. We also show the photonic state in the waveguide can be input into the circuit QED system through a variable coupler, and released after interaction with almost the same waveform except for a $π$-phase shift. Our scheme offers a suitable approach for achieving fast and deterministic two-photon quantum gates via light-matter interactions. |
| title | Deterministic two-photon C-Z gate with the two-photon quantum Rabi model |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2411.03762 |