Measurement problem quantum mechanics

Thread starter Ashish Somwanshi
Start date Nov 9, 2022
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Measurement Measurement problem Mechanics Quantum Quantum mechanics

Nov 9, 2022

Ashish Somwanshi

Poster has been reminded to always show their work on schoolwork problems that they post

Homework Statement: Suppose there are two quantum mechanical observables c and d represented by operators C and D respectively. Both operators have two eigenstates, ϕ1 and ϕ2 for C and ψ1 and ψ2 for D. Furthermore , the two sets of eigenstates are related to each other as below

ϕ1=1/13(5ψ1+12ψ2)
ϕ2=1/13(12ψ1−5ψ2)

The system was found to be in state ϕ1 initially.

If we measure D, what is the probability of finding the system in ψ2?

Relevant Equations: Born rule?

Is the answer 0.748?

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Nov 9, 2022

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Homework Helper

How did you get that ?
And: what if it is ?

https://www.physicsforums.com/threads/homework-help-guidelines-for-students-and-helpers.686781/

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