Heralded Entanglement Transfer from Entangled Atomic Pair to Free Electrons
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arXiv
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| Format: | Preprint |
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2026
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| author | Ran, Du Ianconescu, Reuven Liu, Shuai Li, Ya-dong Bai, Ji-Yuan He, Ze-Long Shi, Zhi-Cheng Xia, Yan Gover, Avraham |
| author_facet | Ran, Du Ianconescu, Reuven Liu, Shuai Li, Ya-dong Bai, Ji-Yuan He, Ze-Long Shi, Zhi-Cheng Xia, Yan Gover, Avraham |
| contents | We propose a protocol that transfers entanglement from an entangled atomic two-level-system (TLS) resource to a pair of free electrons in an energy-sideband ladder via local electron-TLS interactions. In a controlled rotating-wave regime, closed-form reduced states are derived. TLS heralding then prepares a maximally entangled electron state in a two-dimensional single-excitation manifold, with a simple dependence on the initial TLS resource entanglement. Numerical integration of the full bilinear Hamiltonian quantifies the impacts of detuning and pulse shaping and identifies the leading beyond-rotating-wave corrections. The results establish a heralded route to entangled free electrons and will facilitate further advances in quantum electron optics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_22974 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Heralded Entanglement Transfer from Entangled Atomic Pair to Free Electrons Ran, Du Ianconescu, Reuven Liu, Shuai Li, Ya-dong Bai, Ji-Yuan He, Ze-Long Shi, Zhi-Cheng Xia, Yan Gover, Avraham Quantum Physics We propose a protocol that transfers entanglement from an entangled atomic two-level-system (TLS) resource to a pair of free electrons in an energy-sideband ladder via local electron-TLS interactions. In a controlled rotating-wave regime, closed-form reduced states are derived. TLS heralding then prepares a maximally entangled electron state in a two-dimensional single-excitation manifold, with a simple dependence on the initial TLS resource entanglement. Numerical integration of the full bilinear Hamiltonian quantifies the impacts of detuning and pulse shaping and identifies the leading beyond-rotating-wave corrections. The results establish a heralded route to entangled free electrons and will facilitate further advances in quantum electron optics. |
| title | Heralded Entanglement Transfer from Entangled Atomic Pair to Free Electrons |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2604.22974 |