Weak measurements, non-classicality and negative probability

Sooryansh Asthana, V. Ravishankar

Published 2020-06-22Version 1

This paper establishes a direct, robust and intimate connection between non classicality tests, from quantum game to discord to entanglement, and anomalous outcomes of weak measurements. This is accomplished by employing the recently introduced concept of pseudo projection, and the associated pseudo probability. We expect that this opens up new avenues for testing nonclassicality via weak measurements, and also gives deeper insight into negative pseudo probabilities which become measurable.