A photonic which-path entangler based on longitudinal cavity-qubit coupling
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866914694155993088 |
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| author | McIntyre, Z. M. Coish, W. A. |
| author_facet | McIntyre, Z. M. Coish, W. A. |
| contents | We show that a modulated longitudinal cavity-qubit coupling can be used to control the path taken by a multiphoton coherent-state wavepacket conditioned on the state of a qubit, resulting in a qubit-which-path (QWP) entangled state. QWP states can generate long-range multipartite entanglement using strategies for interfacing discrete- and continuous-variable degrees-of-freedom. Using the approach presented here, entanglement can be distributed in a quantum network without the need for single-photon sources or detectors. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_13573 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | A photonic which-path entangler based on longitudinal cavity-qubit coupling McIntyre, Z. M. Coish, W. A. Quantum Physics Mesoscale and Nanoscale Physics We show that a modulated longitudinal cavity-qubit coupling can be used to control the path taken by a multiphoton coherent-state wavepacket conditioned on the state of a qubit, resulting in a qubit-which-path (QWP) entangled state. QWP states can generate long-range multipartite entanglement using strategies for interfacing discrete- and continuous-variable degrees-of-freedom. Using the approach presented here, entanglement can be distributed in a quantum network without the need for single-photon sources or detectors. |
| title | A photonic which-path entangler based on longitudinal cavity-qubit coupling |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2306.13573 |