|
oldton wrote:
y is everyone mixing up; not being able to determine pos/momentum with
a particle not having a definite pos/mo.?
i mean if u cant find pos w/o disturbing the particle(by shining
light(em wav)on it) ok hard luck. but who says the particle doesnt have
a particular position & mome.. (heisenberg i know but Y?)
New ton
Ok, first off, the l33t typing style marks you as either
not very bright or not very wise. Learn to spell, use
capitals, and at least make an attempt at complete sentences.
The point of what you *seem* to be talking about is the
Heisenberg uncertainty principle. The point of the HUP is
that there are operators in quantum mechanics that do not
commute. One such pair is the position operator, X, and the
momentum operator, P. XP does not equal PX.
And what that means is, in QM, you cannot have a system
that has a specific X value at the same time as it has
a specific P value. Doing something, such as measuring
the position, to push the system into a definite position,
means that the system is no longer in a momentum Eigenstate.
Which means it has not got a specific value for momentum,
but is rather an overlap of several states with different
momentum values.
And that is a very fundamental thing about QM. A particle
can exist in an overlap of states. And things that we
take for granted in classical physics, position and
momentum for example, are no longer deterministic.
If you work through the math instead of relying on word
salad, you will find it all rather fun and wonderful.
But it does take some effort.
Socks
.
|
