Leggett-Garg inequalities for multitime processes
arXiv:2211.13396 · doi:10.1007/s11128-025-04790-x
Abstract
We study some aspects of the Leggett-Garg inequalities by using the operator-state formalism for multitime processes. The process tensor in its Choi-state form, which we call process state, is employed to investigate the Leggett-Garg inequalities and their violations. We find the sufficient conditions on process states for the Leggett-Garg inequalities to hold, based on which we find a new way of characterizing the influences on the violation of Leggett-Garg inequalities through the structure of process states.
13 pages, 1 figure
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