3 papers
quant-ph2018
Necessary and sufficient conditions for macrorealism using two and three-time Leggett-Garg inequalities
J. J. Halliwell
The Leggett-Garg (LG) inequalities were introduced, as a temporal parallel of the Bell inequalities, to test macroscopic realism -- the view that a macroscopic system evolving in t…
quant-ph2017
Comparing Conditions for Macrorealism: Leggett-Garg Inequalities vs No-Signaling in Time
J. J. Halliwell
We consider two different types of conditions which were proposed to test macrorealism in the context of a system described by a single dichotomic variable Q. This is the view that…
quant-ph2016
Deccoherent Histories and Measurement of Temporal Correlation Functions for Leggett-Garg Inequalities
J. J. Halliwell
We consider two protocols for the measurement of the temporal correlation functions of a dichotomic variable Q appearing in Leggett-Garg type inequalities. The protocols measure so…