I'm trying to teach myself string theory using Zwiebach's book, but I know only a little bit of relativity and practically no quantum mechanics. One of the questions asks me to show that, in quantum mechanics, the expressions for the energy and momentum in terms of derivatives can be written as [LaTeX Error: Can't write to directory]
Edit: My latex seems to be failing. What I am trying to write is
What expressions for momentum and energy am I supposed to be looking for?
Last edited by babyEigensheep; 11-24-2009 at 03:13 PM.
Hmm. Try writing your expressions without using LaTeX, which seems to be on the fritz at the moment.
__________________ Adrian C. Keister
B.S. in Physics/Computers and Math, Grove City College (2001)
M.S. in Mathematical Physics, Virginia Tech (2004)
Ph.D. in Mathematical Physics, Virginia Tech (2007)
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energy and momentum in terms of derivatives 
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