Thursday, April 30, 2009, 1:30 pm — Small Seminar Room, Bldg. 510
Dynamics of one-dimensional quantum many-body systems is usually described within the Luttinger Liquid paradigm. In that paradigm, the generic nonlinear dispersion relation of particles is replaced by a linear one. That allows one to solve the dynamics problem exactly, at the expense of introducing Lorentzian symmetry which was absent in the generic system. We investigate the dynamic responses without the linearization of the particle spectrum and find new universal singular behavior of the response functions.
Hosted by: Alexei Tsvelik
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