Nonreciprocal photon blockade induced by parametric amplification in an asymmetrical cavity
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912338379014144 |
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| author | Wu, Shao-Xiong Gao, Xue-Chen Cheng, Huan-Huan Bai, Cheng-Hua |
| author_facet | Wu, Shao-Xiong Gao, Xue-Chen Cheng, Huan-Huan Bai, Cheng-Hua |
| contents | We propose a scheme to generate and manipulate nonreciprocal photon blockade effect in an asymmetrical Fabry-Pérot cavity, which consists of a single two-level atom and a second-order nonlinear medium. By utilizing the intrinsic spatial asymmetry of cavity and applying a parametric amplification pumping laser to the nonlinear medium, we can realize direction-dependent single-photon and two-photon blockade effects. For nonreciprocal single-photon blockade, our proposal is robust across a wide range of parameters, such as the cavity or atomic detuning, coupling strength, and atomic decay. Within similar parameter ranges, nonreciprocal two-photon blockade can be achieved and modulated by finely adjusting the parametric amplification pumping. Our project offers a feasible access to generating high-quality and tunable nonreciprocal single/two-photon source and paves a new avenue for investigating the nonreciprocity of photon quantum statistical properties. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_14974 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nonreciprocal photon blockade induced by parametric amplification in an asymmetrical cavity Wu, Shao-Xiong Gao, Xue-Chen Cheng, Huan-Huan Bai, Cheng-Hua Quantum Physics We propose a scheme to generate and manipulate nonreciprocal photon blockade effect in an asymmetrical Fabry-Pérot cavity, which consists of a single two-level atom and a second-order nonlinear medium. By utilizing the intrinsic spatial asymmetry of cavity and applying a parametric amplification pumping laser to the nonlinear medium, we can realize direction-dependent single-photon and two-photon blockade effects. For nonreciprocal single-photon blockade, our proposal is robust across a wide range of parameters, such as the cavity or atomic detuning, coupling strength, and atomic decay. Within similar parameter ranges, nonreciprocal two-photon blockade can be achieved and modulated by finely adjusting the parametric amplification pumping. Our project offers a feasible access to generating high-quality and tunable nonreciprocal single/two-photon source and paves a new avenue for investigating the nonreciprocity of photon quantum statistical properties. |
| title | Nonreciprocal photon blockade induced by parametric amplification in an asymmetrical cavity |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2504.14974 |