Heralded single-photon source based on superpositions of squeezed states
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866911880586461184 |
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| author | Azuma, Hiroo Munro, William J. Nemoto, Kae |
| author_facet | Azuma, Hiroo Munro, William J. Nemoto, Kae |
| contents | We propose a heralded single-photon source based on injecting a superposition of oppositely squeezed states onto a beam splitter. Our superposition of squeezed states is composed of only even photon number states (the number of photons is equal to $2,6,10,...$) meaning the probability for an emitted single photon given as a heralded single-photon event is higher than what one can achieve from the usual two-mode squeezed state. This enables one to realize an enhanced heralded single-photon source. We discuss how to create this superposition of squeezed states utilizing a single-mode squeezed state and the cross-Kerr nonlinearity. Our proposed method significantly improves the probability of emitting the heralded single photon compared to spontaneous parametric down-conversion. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_17118 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Heralded single-photon source based on superpositions of squeezed states Azuma, Hiroo Munro, William J. Nemoto, Kae Quantum Physics We propose a heralded single-photon source based on injecting a superposition of oppositely squeezed states onto a beam splitter. Our superposition of squeezed states is composed of only even photon number states (the number of photons is equal to $2,6,10,...$) meaning the probability for an emitted single photon given as a heralded single-photon event is higher than what one can achieve from the usual two-mode squeezed state. This enables one to realize an enhanced heralded single-photon source. We discuss how to create this superposition of squeezed states utilizing a single-mode squeezed state and the cross-Kerr nonlinearity. Our proposed method significantly improves the probability of emitting the heralded single photon compared to spontaneous parametric down-conversion. |
| title | Heralded single-photon source based on superpositions of squeezed states |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2402.17118 |