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Join Date: Dec 2010
Posts: 1

Quantum Mechanics

12/31/2010 9:29 AM

hi when we do measurement on wavefunction it collapses and it gives one of its eigen value depending upon its probability.. when we do measurement again(very soon after the first measurement) in the same wavefunction quantum mechanics says that it will give the same eigen value just what it gave the prior measurment.. after that once again the wavefunction(superpostion of all eigen functions) evolve according to schrodinger equation with time.. when we do measurement the wavefunction take up one of its eigen function. up to howlong(time period) it will in that eigen state? and when the collapsed wavefuntion comeback to general wavefuntion?

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Guru
Engineering Fields - Optical Engineering - Member Engineering Fields - Engineering Physics - Member Engineering Fields - Systems Engineering - Member

Join Date: Apr 2010
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Re: Quantum Mechanics

12/31/2010 2:27 PM

I thought once a measurement is made on a system and the wavefunction 'collapses' the system can't resume being that same wavefunction again. The measurement process affects the system. The next time you measure that system it is a slightly different system.

What system are you considering?

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