Realization of high-fidelity unitary operations on up to 64 frequency bins
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2022
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| _version_ | 1866917590354362368 |
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| author | De, Syamsundar Ansari, Vahid Sperling, Jan Barkhofen, Sonja Brecht, Benjamin Silberhorn, Christine |
| author_facet | De, Syamsundar Ansari, Vahid Sperling, Jan Barkhofen, Sonja Brecht, Benjamin Silberhorn, Christine |
| contents | The ability to apply user-chosen large-scale unitary operations with high fidelity to a quantum state is key to realizing future photonic quantum technologies. Here, we realize the implementation of programmable unitary operations on up to 64 frequency-bin modes. To benchmark the performance of our system, we probe different quantum walk unitary operations, in particular Grover walks on four-dimensional hypercubes with similarities exceeding 95\% and quantum walks with 400 steps on circles and finite lines with similarities of 98\%. Our results open a new path towards implementing high-quality unitary operations, which can form the basis for applications in complex tasks, such as Gaussian boson sampling. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2206_06059 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Realization of high-fidelity unitary operations on up to 64 frequency bins De, Syamsundar Ansari, Vahid Sperling, Jan Barkhofen, Sonja Brecht, Benjamin Silberhorn, Christine Quantum Physics Optics The ability to apply user-chosen large-scale unitary operations with high fidelity to a quantum state is key to realizing future photonic quantum technologies. Here, we realize the implementation of programmable unitary operations on up to 64 frequency-bin modes. To benchmark the performance of our system, we probe different quantum walk unitary operations, in particular Grover walks on four-dimensional hypercubes with similarities exceeding 95\% and quantum walks with 400 steps on circles and finite lines with similarities of 98\%. Our results open a new path towards implementing high-quality unitary operations, which can form the basis for applications in complex tasks, such as Gaussian boson sampling. |
| title | Realization of high-fidelity unitary operations on up to 64 frequency bins |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2206.06059 |