Posted by tch on April 28, 2015, 12:12 pm
Referring to exercise 9.4, I'm unsure of how we solve the equations of motion for a "complex wavenumber" in the monatomic chain. So: frequency is greater than sqrt(k/m), so apply this inequality to omega=2*sqrt(kappa/m)sin(ka/2? and then invert it to find the decay length? Probably just having a brain freeze :/ Thanks everyone 
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