Name: Anonymous 2006-10-13 19:19
an ancient paradox, often called the EPR paradox, the
name shrouded in mystery. The EPR paradox is famous for contradicting quantum
physics in some very important ways. Specifically it shows another old physic theory,
the Heisenberg Uncertainty Principle, to be untrue. The Heisenberg Uncertainty
Principle, believed to be named after a place or a person, affirms that the exact state
of quantum particle cannot be determined with full accuracy, no matter how refined
the measurement equipment is. The classical example being the measurement of the
velocity and position of a free particle: to be able to measure the position of a particle
you must be able to 'see' it. This means that you have to illuminate it at least with one
photon. But the collision between the photon and the particle changes the velocity of
the particle, thus making it impossible to determine what the velocity was before the
position was measured.
Discuss.
name shrouded in mystery. The EPR paradox is famous for contradicting quantum
physics in some very important ways. Specifically it shows another old physic theory,
the Heisenberg Uncertainty Principle, to be untrue. The Heisenberg Uncertainty
Principle, believed to be named after a place or a person, affirms that the exact state
of quantum particle cannot be determined with full accuracy, no matter how refined
the measurement equipment is. The classical example being the measurement of the
velocity and position of a free particle: to be able to measure the position of a particle
you must be able to 'see' it. This means that you have to illuminate it at least with one
photon. But the collision between the photon and the particle changes the velocity of
the particle, thus making it impossible to determine what the velocity was before the
position was measured.
Discuss.