On May 15, 1:22 pm, z
snail-mail.net> wrote:> On May 14, 4:48 pm, BradGuth
gmail.com> wrote:
>>>> by the uncertainty principle, if you have a precise measurement of the
>>> momentum of a particle, its position will be very uncertain, thus the
>>> "instantaneous connection" between particles far apart, "virtual
>>> photons", etc. You can't transmit information that way, though.
>
>> How sad, that you don't even know what a quantum photon or much less
>> what a quantum graviton is.
>
> well, don't tell me, tell tell him:
> "Suppose that we are trying to calculate the probability (or,
> actually, the probability amplitude) that some amount of momentum, p,
> gets transferred between a couple of particles that are fairly well-
> localized. The uncertainty principle says that definite momentum is
> associated with a huge uncertainty in position. A virtual particle
> with momentum p corresponds to a plane wave filling all of space, with
> no definite position at all. It doesn't matter which way the momentum
> points; that just determines how the wavefronts are oriented. Since
> the wave is everywhere, the photon can be created by one particle and
> absorbed by the other, no matter where they are. If the momentum
> transferred by the wave points in the direction from the receiving
> particle to the emitting one, the effect is that of an attractive
> force."
http://math.ucr.edu/home/baez/physics/Quantum/virtual_particles.html
Hard for most of us village idiots to follow, but otherwise seems
informative if not doable.
In the vast outer parts of our intergalactic realm, of perhaps
encountering as few as 1 atom/km3, or perhaps a much as one dark
matter item/m3, how dose a photon manage to function?
What is the zero K tidal reach of a atom?
. - Brad Guth
