Residual entanglement of accelerated fermions is useful
| Autor: | Robabeh Rahimi, Hossein Mehri-Dehnavi, Mehrnoosh Farahmand, Hosein Mohammadzadeh |
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| Rok vydání: | 2017 |
| Předmět: |
Physics
Bell state General Physics and Astronomy CHSH inequality Quantum Physics Quantum entanglement Squashed entanglement 01 natural sciences Multipartite entanglement 010305 fluids & plasmas Superdense coding Quantum mechanics 0103 physical sciences Bell test experiments 010306 general physics Quantum teleportation |
| Zdroj: | Annals of Physics. 383:389-400 |
| ISSN: | 0003-4916 |
| Popis: | The non-vanishing residual entanglement, between the fermionic modes in the infinite acceleration limit, does not violate CHSH inequality, therefore it is not non-local. In this paper, we study the usefulness of the residual fermionic entanglement in single mode approximation and beyond single mode approximation. It is shown that there are some cases where the CHSH inequality is not violated by the residual entanglement, but the state is useful for quantum teleportation. Conditions for the violation of the CHSH inequality in terms of the “presence probability” of the particle in different Rindler regions are given for the state to be useful for teleportation and superdense coding. |
| Databáze: | OpenAIRE |
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