Tutorial: Hong-Ou-Mandel interference with Structured Photons
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866913665282736128 |
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| author | Jaouni, Tareq Gu, Xuemei Krenn, Mario D'Errico, Alessio Karimi, Ebrahim |
| author_facet | Jaouni, Tareq Gu, Xuemei Krenn, Mario D'Errico, Alessio Karimi, Ebrahim |
| contents | The Hong-Ou-Mandel (HOM) effect, an effective two-photon interference phenomenon, is a cornerstone of quantum optics and a key tool for linear optical quantum information processing. While the HOM effect has been extensively studied both theoretically and experimentally for various photonic quantum states, particularly in the spectral domain, detailed overviews of its behaviour for structured photons -- those with complex spatial profiles -- under arbitrary spatial mode measurement schemes are still lacking. This tutorial aims to fill this gap by providing a comprehensive theoretical analysis of the HOM effect for structured photons, including an arbitrary mode projection on quantum interference outcomes. The tutorial also provides analytical, closed-form expressions of the HOM visibility under different measurement conditions, which is a crucial contribution for its application in computational and artificial-intelligence-driven discovery of new quantum experiments exploiting the power of photons with complex spatial modes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_14961 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Tutorial: Hong-Ou-Mandel interference with Structured Photons Jaouni, Tareq Gu, Xuemei Krenn, Mario D'Errico, Alessio Karimi, Ebrahim Quantum Physics Optics The Hong-Ou-Mandel (HOM) effect, an effective two-photon interference phenomenon, is a cornerstone of quantum optics and a key tool for linear optical quantum information processing. While the HOM effect has been extensively studied both theoretically and experimentally for various photonic quantum states, particularly in the spectral domain, detailed overviews of its behaviour for structured photons -- those with complex spatial profiles -- under arbitrary spatial mode measurement schemes are still lacking. This tutorial aims to fill this gap by providing a comprehensive theoretical analysis of the HOM effect for structured photons, including an arbitrary mode projection on quantum interference outcomes. The tutorial also provides analytical, closed-form expressions of the HOM visibility under different measurement conditions, which is a crucial contribution for its application in computational and artificial-intelligence-driven discovery of new quantum experiments exploiting the power of photons with complex spatial modes. |
| title | Tutorial: Hong-Ou-Mandel interference with Structured Photons |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2501.14961 |