Le contenu de cette page n’est pas disponible en français. Veuillez nous en excuser.

On Grandma Quantum's Nonexistent Wheels: The Causal Efficacy of Quantum Non-Events and their Significance

Playing this video requires the latest flash player from Adobe.

Download link (right click and 'save-as') for playing in VLC or other compatible player.

Recording Details

PIRSA Number: 


Among QM's (in)famous oddities, perhaps the most intriguing is the capability of an event that did not occur, only could have, to exert a causal effect. How can a non-event leave a trace as concrete as a detector's click? I discuss this question and a novel insight into it offered by Cohen and Elitzur's "Quantum Oblivion" (20014).