Noncontextual wirings.
| dc.contributor.author | Amaral, Barbara Lopes | |
| dc.contributor.author | Cabello Quintero, Adán | |
| dc.contributor.author | Cunha, Marcelo de Oliveira Terra | |
| dc.contributor.author | Aolita, Leandro | |
| dc.date.accessioned | 2018-11-01T14:55:09Z | |
| dc.date.available | 2018-11-01T14:55:09Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | Contextuality is a fundamental feature of quantum theory necessary for certain models of quantum computation and communication. Serious steps have therefore been taken towards a formal framework for contextuality as an operational resource. However, the main ingredient of a resource theory—a concrete, explicit form of free operations of contextuality—was still missing. Here we provide such a component by introducing noncontextual wirings: a class of contextuality-free operations with a clear operational interpretation and a friendly parametrization. We characterize them completely for general black-box measurement devices with arbitrarily many inputs and outputs. As applications, we show that the relative entropy of contextuality is a contextuality monotone and that maximally contextual boxes that serve as contextuality bits exist for a broad class of scenarios. Our results complete a unified resource-theoretic framework for contextuality and Bell nonlocality. | pt_BR |
| dc.identifier.citation | AMARAL, B. L. et al. Noncontextual wirings. Physical Review Letters, v. 120, p. 130403, mar. 2018. Disponível em: <https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.130403>. Acesso em: 16 jun. 2018. | pt_BR |
| dc.identifier.issn | 10797114 | |
| dc.identifier.uri | http://www.repositorio.ufop.br/handle/123456789/10502 | |
| dc.identifier.uri2 | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.130403 | pt_BR |
| dc.language.iso | en_US | pt_BR |
| dc.rights | restrito | pt_BR |
| dc.title | Noncontextual wirings. | pt_BR |
| dc.type | Artigo publicado em periodico | pt_BR |