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High energies during wave function "collapse"?

  1. Oct 10, 2014 #1

    I was wondering if anybody knew whether or not the moment of wavefunction measurement is always associated with a high energy. I know that we require smaller and smaller wavelengths of light to probe smaller distances, and since energy increases as wavelength decreases, I was wondering if we can even detect precise particle position without high energies being involved.
  2. jcsd
  3. Oct 10, 2014 #2


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    Science Advisor

    A measurement of position with a perfect precision would involve infinite momentum and infinite energy, as you suggested. But a realistic measurement is far from being perfect.
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