Experimental extraction of nonlocal weak values for demonstrating the failure of a product rule.
Opt Lett
; 45(7): 1715-1718, 2020 Apr 01.
Article
em En
| MEDLINE
| ID: mdl-32235981
ABSTRACT
We experimentally demonstrate an alternative method for measuring nonlocal weak values in linear optics, avoiding the use of second-order interaction. The method is based on the concept of modular values. The paths of two photons, initialized in hyperentangled states, are adopted as the meter with the polarization acting as the system. The modular values are read out through the reconstructed final states of the meter. The weak value of nonlocal observables is given through its connection to the modular value. Comparing the weak values of local and nonlocal observables, we demonstrate the failure of product rules for an entangled system. Our results significantly simplify the task of measuring nonlocal weak values and will play an important role in the application of weak measurement.
Texto completo:
1
Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2020
Tipo de documento:
Article