Violation of the Leggett-Garg inequality with weak measurements of photons.
Proc Natl Acad Sci U S A
; 108(4): 1256-61, 2011 Jan 25.
Article
em En
| MEDLINE
| ID: mdl-21220296
ABSTRACT
By weakly measuring the polarization of a photon between two strong polarization measurements, we experimentally investigate the correlation between the appearance of anomalous values in quantum weak measurements and the violation of realism and nonintrusiveness of measurements. A quantitative formulation of the latter concept is expressed in terms of a Leggett-Garg inequality for the outcomes of subsequent measurements of an individual quantum system. We experimentally violate the Leggett-Garg inequality for several measurement strengths. Furthermore, we experimentally demonstrate that there is a one-to-one correlation between achieving strange weak values and violating the Leggett-Garg inequality.
Texto completo:
1
Temas:
ECOS
/
Equidade_desigualdade
Bases de dados:
MEDLINE
Assunto principal:
Teoria Quântica
/
Fótons
Aspecto:
Equity_inequality
Idioma:
En
Revista:
Proc Natl Acad Sci U S A
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Austrália