Thanks,Measuring Electron Wavefunction: Effects?

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The discussion centers on the measurement of an electron's wavefunction and its implications. When a measurement is made, such as determining the position or velocity of an electron, the wavefunction collapses to an eigenstate. Post-measurement, the wavefunction evolves over time according to the Schrödinger equation, indicating that its phase and frequency will change. The conversation also touches on the necessity of measurement methods that do not involve photons, highlighting the complexities of quantum mechanics.

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hey guys,

this is a silly question, I'm sure it's been answered in other threads many times before and for that I am sorry.

when we take a measurement on an electron (lets say position or velocity), do we change it's wavefunction? What I mean is, we have a wavefunction in time and space. it collapses to an eigenstate when we observe it. After this observation, is the wavefunction of the electron the same, or is it's phase and frequency different? (assuming in measuring it we aren't hitting it with photons or anything)
 
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Yes, at the very least, the phase will evolve over time, according to the Schrödinger equation. Why do you require measurement to not involve photons?
 

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