On Grandma Quantum's Nonexistent Wheels: The Causal Efficacy of Quantum Non-Events and their Significance
APA
Elitzur, A. (2016). On Grandma Quantum's Nonexistent Wheels: The Causal Efficacy of Quantum Non-Events and their Significance. Perimeter Institute. https://pirsa.org/16060105
MLA
Elitzur, Avshalom. On Grandma Quantum's Nonexistent Wheels: The Causal Efficacy of Quantum Non-Events and their Significance. Perimeter Institute, Jun. 10, 2016, https://pirsa.org/16060105
BibTex
@misc{ pirsa_PIRSA:16060105, doi = {10.48660/16060105}, url = {https://pirsa.org/16060105}, author = {Elitzur, Avshalom}, keywords = {Quantum Foundations}, language = {en}, title = {On Grandma Quantum{\textquoteright}s Nonexistent Wheels: The Causal Efficacy of Quantum Non-Events and their Significance}, publisher = {Perimeter Institute}, year = {2016}, month = {jun}, note = {PIRSA:16060105 see, \url{https://pirsa.org}} }
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).