Jun 22 – 27, 2023
Auditorium Maximum
Europe/Warsaw timezone

Revealing violations of macrorealism in flavor oscillations: Leggett-Garg inequalities and no-signaling-in-time conditions

Jun 23, 2023, 5:10 PM
Medium lecture hall (A) (Auditorium Maximum)

Medium lecture hall (A)

Auditorium Maximum


Kyrylo Simonov (University of Vienna)


We consider two necessary and sufficient conditions for macrorealism recently appeared in the literature, known as no-signaling-in-time and arrow-of-time conditions, respectively, and study them in the context of flavor transitions, within both the plane wave description and the wave packet approach. We then compare the outcome of the above investigation with the implication of various formulations of Leggett-Garg inequalities. In particular, we show that the fulfillment of the addressed conditions for macrorealism in flavor oscillations implies the fulfillment of Leggett-Garg inequalities, whereas the converse is not true. Finally, in the framework of wave packet approach, we also prove that, for distances longer than the coherence length, the no-signaling-in-time condition is always violated whilst Leggett-Garg inequalities are not.

Primary authors

Fabrizio Illuminati (University of Salerno) Kyrylo Simonov (University of Vienna) Luca Smaldone (University of Warsaw) Luciano Petruzziello (University of Salerno) Massimo Blasone (University of Salerno)

Presentation materials