Measurement compatibility in Bell nonlocality tests

Autor(es)

Temistocles, Tassius ; Rabelo, Rafael ; Cunha, Marcelo Terra

• Tipo de documento: Artigo Científico
• Fonte: PHYSICAL REVIEW A; v. 99, n. 4, p. 10-pg., 2019-04-22.

Resumo

Incompatibility of observables, or measurements, is one of the key features of quantum mechanics, related, among other concepts, to Heisenberg's uncertainty relations and Bell nonlocality. In this manuscript we show, however, that even though incompatible measurements are necessary for the violation of any Bell inequality, some relevant Bell-like inequalities may be obtained if compatibility relations are assumed between the local measurements of one (or more) of the parties. Hence, compatibility of measurements is not necessarily a drawback and may, however, be useful for the detection of Bell nonlocality and device-independent certification of entanglement. (AU)

• Processo FAPESP: 18/07258-7 - Emaranhamento, não-localidade de Bell, e princípios físicos para a teoria quântica
• Beneficiário: Rafael Luiz da Silva Rabelo
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores