Re: Critical size (or Mass?) of the particle at which Macro transitions to Micro (Ref: Double Slit Experiment)


"Ravindra" <kmsravindra@xxxxxxxxx> wrote in message
news:1144921301.998543.71500@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Have couple of questions:

1. Lets assume a scenario of performing Double slit experiment starting
with bullet size partciles emitted from the gun one after another.
Obviously the interference pattern will not be observed. Now start
repeating the experiment by gradually decreasing the bullet size till
it becomes the size of an electron. Interference will appear. But there
is certain critical size of the particle at which this conversion
should happen. Anyone aware of this size?

What is the "size" of a radio-wave photon? I think it is far larger than a
bullet.


2. A follow-up to my previous one, does interference depends on size of
the particle / mass of the particle? Lets say I have condensed the mass
of bullet into the size/volume of an electron and fire this in the
double slit experiment. Would interference be still observed ( ofcourse
assuming that the affect of gravity on this mass be nullified by some
experimental setup, say)


I think its a specific behavior/property of photons and other such
"particles" that is being measured in this kind of experiment. The "size" of
the particle isn't relevant to whether or not the slit experiment works at
all: its the other properties. The size might be relevant to how you need to
set up the experiment to find the effect, but thats about it. Ditto with the
mass: that changes the requirements for the experimental setup, but unless
the "particle" is of a certain type or types, you won't find the
interference pattern no matter how you set things up.



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