Does the Heisenberg cut exist?

[John Clark]

Many quantum interpretations such as Copenhagen (but not Many Worlds) claim there is a "Heisenberg cut", a dividing line between the quantum world and the classical world, but it's getting harder and harder to find where that dividing line is. At first they claimed quantum mechanical behavior was limited to sub atomic particles but then it was discovered that buckyballs, which are composed of 60 carbon atoms, did too. And now in Wednesday's issue of the journal Nature experimenters report they have detected quantum behavior in silica nanospheres that have a diameter of 120 nm and contain approximately 60 million atoms, and they were able to detect it even at room temperature. 

I don't think the Heisenberg cut exists, I think everything behaves quantum mechanically.

High-purity quantum optomechanics at room temperature

 John K Clark    See what's on my new list at  Extropolis

38g

[Lawrence Crowell]

Everything is quantum mechanical --- until it is not. Classical systems are only quantum mechanical to the extent they are perturbed stochastically by quantum noise. The Heisenberg cut is not a cut, but an asymptotic condition.

LC

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