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Topic: Measuring single quanta...
Replies: 11   Last Post: Jun 14, 2013 9:39 AM

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Existential Angst

Posts: 31
Registered: 11/13/11
Measuring single quanta...
Posted: Jun 9, 2013 3:31 PM
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So ahm watchin Morgan Freeman and his universe/Wormhole stuff, and they are
showing QM experiments where they are feeding/measuring SINGLE QUANTA at a
time.... ie, one photon. Double slit experiments, some tuning-fork
experiment at 0 deg K, some entanglement stuff....

Is it really possible to do meaningful (read: "real") experiments with
single photons??? These Wormhole guys certainly think so, and I would
imagine it took $millions to set these experiments up.

I mean, if we can't meaningfully pinpoint an electron, how can these guys be
sure wtf is going on with a SINGLE photon??

Now, as I think about it, they seem to be able to detect particle collisions
is bubble chambers, and the resulting sub-particles (incl photons, I
presume), so I guess it is possible to at least detect such things.... at
least in bubble chambers.

But it's hard to imagine single photons, even single electrons being
*controlled* in circuits, etc.
Just curious.

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