Canonical and conjugate momentum

  1. Apr 10, 2011 #1
    what is the difference between canonical and conjugate momentum.. ? what is its physical significant.. I was reading classical mechanics by Goldstein but could understood this terms
  2. jcsd
  3. Apr 11, 2011 #2


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    Exactly the same thing. You might use the term conjugate momentum when you're referring to the canonical momentum which is conjugate to a particular coordinate.
  4. Apr 12, 2011 #3
    Hi Bill_k,

    Thanks for reply but what that means ? "conjugate to a particular coordinate"... physical intrepretation
  5. Apr 12, 2011 #4


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    The canonical conjugate momentum p is derived via a derivative of the action w.r.t. the time derivative of a generalized coordinate q. Then {q,p}=1. The physical interpretation of p depends on the interpretation of q.
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