https://doi.org/10.1140/epjp/s13360-025-06456-0
Regular Article
Bidirectional multi-output quantum communication of single-qubit states
School of Mathematics and Statistics, Kashi University, 844000, Kashi, Xinjiang, China
Received:
22
November
2024
Accepted:
20
May
2025
Published online:
9
June
2025
In this paper, two new theoretical schemes of the arbitrary single-qubit states are presented. One is bidirectional multi-output quantum teleportation via an eight-qubit entangled state as the quantum channel, where Alice and Bob are not only senders but also receivers, and Alice is able to simultaneously transmit different arbitrary unknown single-qubit states to receivers Bob and Charlie, respectively, while Bob can also simultaneously teleport different single-qubit states to receivers Alice and David, respectively. The other is four-party bidirectional quantum multicast communication, where a twelve-qubit entangled state is employed as the quantum channel to prepare single-qubit states remotely in a bidirectional fashion. In this scheme, four participants are both senders and receivers, and Alice and David jointly help Bob and Charlie to prepare their respective known single-qubit states separately and remotely; meanwhile, Bob and Charlie also work together to assist Alice and David in remotely preparing their respective known single-qubit states, respectively. We demonstrate that our schemes are deterministic, ensuring that both bidirectional multi-output quantum communications achieve a 100% overall success probability.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
