Multiple-measurement Leggett-Garg inequalities

Marco Barbieri (1)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Optique quantique

In the investigation of the quantum to classical transition, the Leggett-Garg inequality represents what Bell's inequality is for the study of entanglement and nonlocality: a definite quantitative test showing the inadequacy of familiar lines of thought in interpreting quantum phenomena. Here we discuss the generalization of the Leggett-Garg inequality to an arbitrary number of measurements in the perspective of its use as a tool for characterizing nondestructive measurement devices

Domaines: Physique Quantique [quant-ph]

Marco Barbieri. Multiple-measurement Leggett-Garg inequalities. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2009, 80, pp.034102. ⟨10.1103/PhysRevA.80.034102⟩. ⟨hal-00566912⟩