Phys. Rev. Lett. 115, 250401 (2015)
Phys. Rev. A 93, 032115 (2016)
Phys. Rev. Lett. 115, 250401 (2015)
arxiv:1501.07517
Macroscopic realism, the classical world view that macroscopic objects exist independently of and are not influenced by measurements, is usually tested using Leggett-Garg inequalities. Recently, another necessary condition called no-signaling in time (NSIT) has been proposed as a witness for non-classical behavior.
Phys. Rev. Lett. 105, 070501 (2010)