Non-adiabatic holonomies as photonic quantum gates
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866914634336829440 |
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| author | Neef, Vera Pinske, Julien Wolterink, Tom A. W. Becker, Karo Heinrich, Matthias Scheel, Stefan Szameit, Alexander |
| author_facet | Neef, Vera Pinske, Julien Wolterink, Tom A. W. Becker, Karo Heinrich, Matthias Scheel, Stefan Szameit, Alexander |
| contents | One of the most promising nascent technologies, quantum computation faces a major challenge: The need for stable computational building blocks. We present the quantum-optical realization of non-adiabatic holonomies that can be used as single-qubit quantum gates. The hallmark topological protection of non-Abelian geometric phases reduces the need for quantum error correction on a fundamental physical level, while the inherent non-adiabaticity of the structures paves the way for unprecedented miniaturization. To demonstrate their versatility, we realize the Hadamard and Pauli-X gates, experimentally show their non-Abelian nature, and combine them into a single-qubit quantum algorithm, the PQ penny flipover. The planar geometry of such designs enables them to be substituted for the conventional directional coupler meshes currently in wide-spread use in photonic quantum architectures across all platforms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_04014 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Non-adiabatic holonomies as photonic quantum gates Neef, Vera Pinske, Julien Wolterink, Tom A. W. Becker, Karo Heinrich, Matthias Scheel, Stefan Szameit, Alexander Quantum Physics Optics One of the most promising nascent technologies, quantum computation faces a major challenge: The need for stable computational building blocks. We present the quantum-optical realization of non-adiabatic holonomies that can be used as single-qubit quantum gates. The hallmark topological protection of non-Abelian geometric phases reduces the need for quantum error correction on a fundamental physical level, while the inherent non-adiabaticity of the structures paves the way for unprecedented miniaturization. To demonstrate their versatility, we realize the Hadamard and Pauli-X gates, experimentally show their non-Abelian nature, and combine them into a single-qubit quantum algorithm, the PQ penny flipover. The planar geometry of such designs enables them to be substituted for the conventional directional coupler meshes currently in wide-spread use in photonic quantum architectures across all platforms. |
| title | Non-adiabatic holonomies as photonic quantum gates |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2401.04014 |