Regensburg 2013 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 3: Correlated Electrons: Low-Dimensional Systems - Models 1
TT 3.5: Talk
Monday, March 11, 2013, 10:30–10:45, H9
Density Oscillations in the 1D Hubbard Model in a Harmonic Trap at Finite Temperature — •Denis Morath, Stefan Söffing, and Sebastian Eggert — Department of Physics, Univ. Kaiserslautern, Erwin Schrödinger Str. , 67663 Kaiserslautern, Germany
We are investigating the Hubbard-Chain in a harmonic trapping-potential at finite temperatures which is an appropriate model to describe cold atoms in a trap. Depending on the interaction strength one observes 2kF- and 4kF-oscillations of the density. Here we show the temperature dependence of these oscillations using QMC and analyze them within the bosonization scheme. With increasing temperatures the amplitude of the oscillations is decreased. We will give an estimation at which temperature it will be possible to resolve the oscillations.