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1. The problem statement, all variables and given/known data

The spring constant for a particle in the ground state of a simple harmonic oscillator changes by a factor a^4 instantaneously, what is the probability that the particle is observed in the ground state of the new potential immediately following the change

can anyone give me a step in the right direction please, i think i have to use perturbation theory, but havent really been taught how to

2. Relevant equations

v(x)=(a^4)(kx^2)/2 is the new potential

3. The attempt at a solution

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# Homework Help: Quantum Physics Help

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