Questions tagged [collective-excitations]
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Are charged excitation excited states ? - FQHE
I have been reading tong's lectures notes, as well as Prange / Girvin book and Laughlin nobel's lecture. I still can't figure it out.
What is the laughlin ground state off ?
I understand there are ...
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Negative curvature of zero sound dispersion
In the theory of a Landau-Fermi liquid, one of the major predictions is the dispersion of zero sound. From the linearized kinetic equation, we know that the dimensionless dispersion $s$ is given by
$$ ...
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