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DanielLC comments on Open Thread April 8 - April 14 2014 - Less Wrong Discussion

3 Post author: Tenoke 08 April 2014 11:11AM

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Comment author: jd_k 11 April 2014 04:34:56PM *  1 point [-]

(This was posted in the welcome thread, and I received a PM suggesting I post it here.)

I am looking for someone to help me with the Quantum Physics sequence. I have little background in physics and mathematics. For purposes of the sequence, you could probably consider me "intelligent but uninformed" or something like that.

To indicate the level on which I am having difficulties, take as an example the Configurations and Amplitude post.

  • I can do the algebra involved.
  • I found the articles linked in this comment helpful.
  • I understand the notion of configuration space in its classical sense.
  • I do not understand how the term "amplitude" is functioning in the post.

Hopefully that gives you an idea of where I am at and what sort of help I might need. It's totally basic stuff, obviously, and there is a part of me that is somewhat embarrassed to ask. Nevertheless, learning is more important than avoiding embarrassment.

Comment author: DanielLC 12 April 2014 07:51:13PM 0 points [-]

If you have specific questions to ask, I'd be happy to answer them.

"Amplitude" just refers to a complex number corresponding to a given point in configuration space. The Schrödinger equation specifies how the field of these complex numbers evolves over time. The probability of being in a particular configuration is proportional to the square of this amplitude. Does that help?