{"ID":2831212,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2512.08623","arxiv_id":"2512.08623","title":"An Efficient Secret Communication Scheme for the Bosonic Wiretap Channel","abstract":"We propose a new secret communication scheme over the bosonic wiretap channel. It uses readily available hardware such as lasers and direct photodetectors. The scheme is based on randomness extractors, pulse-position modulation, and Reed-Solomon codes and is therefore computationally efficient. It is secure against an eavesdropper performing coherent joint measurements on the quantum states it observes. In the low-photon-flow limit, the scheme is asymptotically optimal and achieves the same dominant term as the secrecy capacity of the same channel.","short_abstract":"We propose a new secret communication scheme over the bosonic wiretap channel. It uses readily available hardware such as lasers and direct photodetectors. The scheme is based on randomness extractors, pulse-position modulation, and Reed-Solomon codes and is therefore computationally efficient. It is secure against an...","url_abs":"https://arxiv.org/abs/2512.08623","url_pdf":"https://arxiv.org/pdf/2512.08623v1","authors":"[\"Esther Hänggi\",\"Iyán Méndez Veiga\",\"Ligong Wang\"]","published":"2025-12-09T14:09:36Z","proceeding":"quant-ph","tasks":"[\"quant-ph\",\"cs.CR\"]","methods":"[]","has_code":false}