University of Birmingham > Talks@bham > Theoretical Physics Seminars > From GPE to KPZ: finite temperature dynamical structure factor of the 1D Bose gas

## From GPE to KPZ: finite temperature dynamical structure factor of the 1D Bose gasAdd to your list(s) Download to your calendar using vCal - Dr Austen Lamacraft, U of Cambridge
- Thursday 18 October 2012, 13:45-15:00
- Theory Library.
If you have a question about this talk, please contact Dr Dimitri M Gangardt. We study the finite temperature dynamical structure factor of a 1D Bose gas using numerical simulations of the Gross—Pitaevskii equation appropriate to a weakly interacting system. The lineshape of the phonon peaks reveals a remarkable connection to the Kardar—Parisi—Zhang universality class of dynamical critical phenomena, with a width proportional to |k|^{3/2} at low wavevectors, and a non-Lorentzian lineshape. This anomalous hydrodynamic behavior is the most significant `beyond Luttinger liquid’ effect at finite temperature. This talk is part of the Theoretical Physics Seminars series. ## This talk is included in these lists:Note that ex-directory lists are not shown. |
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