- #1
sridhar
- 19
- 0
I am just beginning to understand this concept. Some help would be appreciated.
Let me know if I am wrong in saying the following:
"The wave function (say [tex]\Psi[/tex]] collapses to an eigen vector of the operator corresponding to the physical quantity(say [tex]\lambda[/tex]) being measured. This is because the act of measuring interferes with the system"
Now what confuses me (further) is that, as a result of the wavefunction collapsing to an Eigen vector, the subsequent measurements give the values with a probability 1.
I understand that if [tex]\Psi[/tex]=[tex]\Sigma[/tex] ai Ni and [tex]\Psi[/tex] collapses to some Ni, ai=1 => probability is 1.
But doesn't this eigen function Ni now act as a new [tex]\Psi[/tex] !
We should be able to find a basis set of vectors corresponding to Ni in which case it should again collapse to another smaller eigenvector. This doesn't seem to happen.
Why?
Hope the question is clear.
Let me know if I am wrong in saying the following:
"The wave function (say [tex]\Psi[/tex]] collapses to an eigen vector of the operator corresponding to the physical quantity(say [tex]\lambda[/tex]) being measured. This is because the act of measuring interferes with the system"
Now what confuses me (further) is that, as a result of the wavefunction collapsing to an Eigen vector, the subsequent measurements give the values with a probability 1.
I understand that if [tex]\Psi[/tex]=[tex]\Sigma[/tex] ai Ni and [tex]\Psi[/tex] collapses to some Ni, ai=1 => probability is 1.
But doesn't this eigen function Ni now act as a new [tex]\Psi[/tex] !
We should be able to find a basis set of vectors corresponding to Ni in which case it should again collapse to another smaller eigenvector. This doesn't seem to happen.
Why?
Hope the question is clear.
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