PreprintCC BY 4.0arXiv
Three-qubit entanglement in the Bethe-Heitler process
Abstract
The familiar Bethe-Heitler process on the proton target e+p→ e+p+γ is transformed into a laboratory for studying multiparticle entanglement. We discuss how bipartite and genuine tripartite entanglement between the final state electron, proton and photon are built up by successive 1→ 2 and 2→ 2 elementary interactions. We validate our argument by simulating events. Below 5 GeV center-of-mass energy, we identify more than 900 Greenberger-Horne-Zeilinger (GHZ) states and 1200 W states, each with a fidelty exceeding 99%.
Related
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BibTeX
@misc{cao2026threequbit,
title = {{Three-qubit entanglement in the Bethe-Heitler process}},
author = {Haotian Cao and Yuxun Guo and Yoshitaka Hatta and Jakob Schoenleber},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2608.18030},
eprint = {2608.18030},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.18030},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Three-qubit entanglement in the Bethe-Heitler process
AU - Haotian Cao
AU - Yuxun Guo
AU - Yoshitaka Hatta
AU - Jakob Schoenleber
PY - 2026
DA - 2026/08/29
PB - arXiv
DO - 10.48550/arxiv.2608.18030
UR - https://arxiv.org/abs/2608.18030
AB - The familiar Bethe-Heitler process on the proton target e+p→ e+p+γ is transformed into a laboratory for studying multiparticle entanglement. We discuss how bipartite and genuine tripartite entanglement between the final state electron, proton and photon are built up by successive 1→ 2 and 2→ 2 elementary interactions. We validate our argument by simulating events. Below 5 GeV center-of-mass energy, we identify more than 900 Greenberger-Horne-Zeilinger (GHZ) states and 1200 W states, each with a fidelty exceeding 99%.
ER -