• montechristo@feddit.org
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      16 days ago

      I describe the atoms using a so called Lindblad master equation. The atoms are kept in this description, but the light field is eliminated using two assumptions:

      1. The coupling between the two is very weak.
      2. Correlations between the two decay so fast that this can be considered instantaneous.

      The later produces white noise.

      • trolololol@lemmy.world
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        15 days ago

        That’s cool

        In most fields " so fast that’s instantaneous" is pretty fast, but in nuclear and quantum physics that’s a whole new level.

        What is the order of magnitude of your " too fast ”? I will invert that to state the bandwidth in Hertz.

        • montechristo@feddit.org
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          15 days ago

          Typical transition frequencies between two levels of an atom are 10^15Hz. The coupling between atoms and light is on the order of the decay rate at which photons are transmitted, which sits at around 10^6Hz.