Violation of the two-time Leggett-Garg inequalities for a coarse-grained quantum field
Violation of the two-time Leggett-Garg inequalities for a coarse-grained quantum field
We investigate the violation of the Leggett-Garg inequalities for a quantum field, focusing on the two-time quasiprobability distribution function of the dichotomic variable with a coarse-grained scalar field. The Leggett-Garg inequalities are violated depending on the quantum state of the field and the size of coarse graining. We demonstrate that …