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Unclarity about Hamiltonians
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Author:  fallingup [ 06 Apr 2008, 16:49 ]
Post subject:  Unclarity about Hamiltonians

This is a comment I prepared for Prof. Penrose. Any comments?
Laura
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Author:  Lemaitre [ 07 Apr 2008, 11:15 ]
Post subject:  Re: Unclarity about Hamiltonians

Laura,

I think your comment is excellent, and I hope Prof. Penrose will have time to take a look at it and answer you...Except for one thing: could you give me an example of a potential which is velocity-dependent?

Regards

Author:  fallingup [ 18 Apr 2008, 11:49 ]
Post subject:  Re: Unclarity about Hamiltonians

The electromagnetic vector potential is velocity-dependent. This gets subtracted out in the Hamiltonian, but then the minimum isn't at p_i = 0.
See http://en.wikipedia.org/wiki/Hamiltonian_mechanics
Laura

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