Indistinguishability of photonic qubits emitted from trapped $^{40}$Ca$^+$ ions via pulsed excitation
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866917543782907904 |
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| author | Baumgart, Pascal Bergerhoff, Max Meiers, Jonas Kucera, Stephan Eschner, Jürgen |
| author_facet | Baumgart, Pascal Bergerhoff, Max Meiers, Jonas Kucera, Stephan Eschner, Jürgen |
| contents | We investigate the indistinguishability of Raman photons generated from two trapped $^{40}$Ca$^+$ ions using few-nanosecond excitation pulses. We elucidate how spontaneous scattering back to the initial state affects Hong-Ou-Mandel interference. We identify the mean number of back-decays as a measurable single-emitter quantity that correlates with achievable interference visibility of photons from two identical emitters. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_29825 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Indistinguishability of photonic qubits emitted from trapped $^{40}$Ca$^+$ ions via pulsed excitation Baumgart, Pascal Bergerhoff, Max Meiers, Jonas Kucera, Stephan Eschner, Jürgen Quantum Physics We investigate the indistinguishability of Raman photons generated from two trapped $^{40}$Ca$^+$ ions using few-nanosecond excitation pulses. We elucidate how spontaneous scattering back to the initial state affects Hong-Ou-Mandel interference. We identify the mean number of back-decays as a measurable single-emitter quantity that correlates with achievable interference visibility of photons from two identical emitters. |
| title | Indistinguishability of photonic qubits emitted from trapped $^{40}$Ca$^+$ ions via pulsed excitation |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2605.29825 |