Can somebody identify this equation for me?

[deltabourne]

http://www.gemmdesigns.com/physics.gif
I can't quite place it

[chroot]

Link doesn't work.

- Warren

[deltabourne]

sorry, does it work now?

[chroot]

Yeah. I don't know what it is, but it looks like something in relativistic quantum mechanics.

- Warren

[franznietzsche]

It looks like an altered form of the complex fourier series. BAsed on that i think it deals with energy distribution across frequencies, but beyond that i am not sure. The first line uses dummy indices in a form similar to the notation uses in tensor calculus, so i think chroot may be right.

[selfAdjoint]

It's the general solution of the wave equation for a (classical) string with tension \alpha' and length L. Compare Polchinski's String Theory, equation 1.3.22.

[franznietzsche]

Originally posted by selfAdjoint
It's the general solution of the wave equation for a (classical) string with tension \alpha' and length L. Compare Polchinski's String Theory, equation 1.3.22.

well, we were way off.

[deltabourne]

thanks everyone!