"The phenomenon of entanglement is the essential fact of quantum mechanics, the fact that makes it so different from classical physics. It brings into question our entire understanding about what is real in the physical world. Our ordinary intuition about physical systems is that if we know everything about a system, that is, everything that can in principle be known, then we know everything about its parts. If we have complete knowledge of the condition of an automobile, then we know everything about its wheels, its engine, its transmission, right down to the screws that hold the upholstery in place. It would not make sense for a mechanic to say, “I know everything about your car but unfortunately I can’t tell you anything about any of its parts.” But that’s exactly what Einstein explained to Bohr — in quantum mechanics, one can know everything about a system and nothing about its individual parts — but Bohr failed to appreciate this fact. I might add that generations of quantum textbooks blithely ignored it."
Quote Details
Added by wikiquote-import-bot
Unverified quote
0 likes
Original Language: English
Available Languages (1)
Sources
Leonard Susskind, in the Preface of Quantum Mechanics: The Theoretical Minimum (2014) by Leonard Susskind and Art Friedman
https://en.wikiquote.org/wiki/Quantum_entanglement
Revision History
No revisions have been submitted for this quote.
Categories
Quantum entanglement
9 quotes on TrueQuotesView all quotes by Quantum entanglement →
Related Quotes
"... you consider my attitude towards to be strange and archaic. ... the theory cannot be reconciled with the idea tha…"
"When the quantum system contains more than one particle, the superposition principle gives rise to the phenomenon of …"
"The two photons are entangled and according to local realism, their polarization planes should become independent... …"
"Quantum theory is now discussing instantaneous connections between two entangled quantum objects such as electrons. T…"
"I'd like to think that the moon still exists, even if I'm not looking at it."
"He [Albert Einstein] didn’t think the spooky action at a distance would be verified, but it was, He thought that was …"
"When two systems, of which we know the states by their respective representation, enter into a temporary physical int…"
"There is a troubling weirdness about quantum mechanics. Perhaps its weirdest feature is entanglement, the need to des…"
"... was formalized by a number of authors ... as the requirement that the wave function of a multi-electron system is…"
"What is the empirical content of quantum mechanics? Or how does the wave function assigned to a relate to the results…"