Semi-device-independent certification of entanglement in superdense coding
| Author | Araújo, Rafael Chaves Souto; Nery, Ranieri Vieira; Gois, Carlos de; Rabelo, Rafael; Marcos George Magalhães Moreno Filho | |
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| Publisher | Physical Review A | |
| Date | 2021-02-25 | |
| Keywords | Entanglement detection Detecção de emaranhamento Quantum communication Comunicação quântica Quantum entanglement Emaranhamento quântico | |
| Citation | ||
| Abstract | Superdense coding is a paradigmatic protocol in quantum information science, employing a quantum communication channel to send classical information more efficiently. As we show here, it can be understood as a particular case of a prepare and measure experiment, a scenario that has attracted growing attention for its fundamental and practical applications. Formulating superdense coding as a prepare and measure scenario allows us to provide a semi-device-independent witness of entanglement that significantly improves over previous tests. Furthermore, we also show how to adapt our results into self-testing of maximally entangled states and also provide a semidefinite program formulation allowing one to efficiently optimize, for any shared quantum state, the probability of success in the superdense coding protocol | |
| URI | https://repositorio.ufrn.br/handle/123456789/63705 | |
| Collections | ECT - Artigos publicados em periódicos |
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