- #1
StevieTNZ
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First, in regard to this article:
http://physicsworld.com/cws/article/news/45535 (http://www.nature.com/nature/journal/v471/n7339/full/nature09778.html)
Does the Heisenberg limit apply to single particle systems, rather than N amount of particles? I draw that conclusion from
The second, and last:
http://www.pas.rochester.edu/~jordan/nature_steinberg.pdf
A weak measurement causes us to only gain little information of a quantum system?
Which would explain this? http://www.physorg.com/news137245970.html
A weak measurement doesn't cause a full collapse of the quantum system, only partial like in the PhysOrg article? So its not so much that a complete collapse has occured, then been undone?
http://physicsworld.com/cws/article/news/45535 (http://www.nature.com/nature/journal/v471/n7339/full/nature09778.html)
Does the Heisenberg limit apply to single particle systems, rather than N amount of particles? I draw that conclusion from
Napolitano is keen to point out that this result does not imply that the Heisenberg uncertainty principle is wrong, but rather it shows that we do not properly understand how to scale that principle up to multiple-particle systems.
The second, and last:
http://www.pas.rochester.edu/~jordan/nature_steinberg.pdf
A weak measurement causes us to only gain little information of a quantum system?
Which would explain this? http://www.physorg.com/news137245970.html
A weak measurement doesn't cause a full collapse of the quantum system, only partial like in the PhysOrg article? So its not so much that a complete collapse has occured, then been undone?
But only a weak measurement was done? Any other measurement than a weak measurement would cause the superposition to collapse to yield a definite state?Katz, however, says being able to reverse the collapse "tells us that we really can't assume that measurements create reality because it is possible to erase the effects of a measurement and start again."
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