1. Jun 18, 2016 #1

   referframe

   

   Gold Member

   Given a system of charged particles interacting with an EM field. Is the canonical momentum always conserved? If so, what is the associated symmetry?
   
   Thanks in advance.

    

   referframe, Jun 18, 2016
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3. Jun 18, 2016 #2

   vanhees71

   

   Science Advisor

   Insights Author

   2016 Award

   The canonical momentum is conserved, if the Hamiltonian is independent of the corresponding configuration variable. Then the system is symmetric under translations of this configuration variable.

    

   vanhees71, Jun 18, 2016

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