Hi. My question is a general one but I will use an infinite well as an example.(adsbygoogle = window.adsbygoogle || []).push({});

Without knowing details of the exact wavefunction I presume it can exist as a linear superposition of an infinite number of energy eigenstates ? Without knowing the exact wavefunction ; does that mean that when the energy is measured all energy eigenvalues are equally likely ? Even the infinite energy value ?

When the energy is measured the wavefunction collapses to the associated eigenfunction. But then what happens ? Does it stay in that state forever ?

Thanks

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# I Superposition state and wavefunction collapse

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