Robertson-Schrodinger-type formulation of Ozawa's noise-disturbance uncertainty principle

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

Bastos, C (Autor) Outra; Bernardini, AE (Autor) Outra; Bertolami, O (Autor) FCUP; Dias, NC (Autor) Outra; Prata, JN (Autor) Outra

Revista

Título: Physical Review A - Atomic, Molecular, and Optical Physics

Vol. 89

ISSN: 1050-2947

Editora: American Physical Society

Indexação

ISI Web of Knowledge - 20 Citações

Scopus - 20 Citações

Classificação Científica

FOS: Ciências exactas e naturais

Outras Informações

ID Authenticus: P-009-9Y4

DOI: 10.1103/physreva.89.042112

Abstract (EN): In this work we derive a matrix formulation of a noise-disturbance uncertainty relation, which is akin to the Robertson-Schrodinger uncertainty principle. Our inequality is stronger than Ozawa's uncertainty principle and takes noise-disturbance correlations into account. Moreover, we show that for certain types of measurement interactions it is covariant with respect to linear symplectic transformations of the noise and disturbance operators. Finally, we also study the tightness of our matrix inequality.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6