Indistinguishability of photonic qubits emitted from trapped $^{40}$Ca$^+$ ions via pulsed excitation

Fuente: arXiv
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Hauptverfasser: Baumgart, Pascal, Bergerhoff, Max, Meiers, Jonas, Kucera, Stephan, Eschner, Jürgen
Format: Preprint
Veröffentlicht: 2026
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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