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DPG

Berlin 2008 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 32: Correlated Electrons: Poster Session

TT 32.87: Poster

Thursday, February 28, 2008, 14:00–18:00, Poster B

Quantum Monte Carlo Study of SSH and breathing type Hamiltonians — •Hans Gerd Evertz and Peter Pippan — TU Graz, Austria

Using a QMC method based on the loop algorithm we study fermionic systems coupled to dynamical phonons in one dimension. Within this method it is possible to study SSH type models as well as Holstein type models with momentum dependent couplings (e.g. breathing phonons) and arbitrary phonon dispersions. We access the dynamical properties of the systems via the phonon spectral function and the one particle dynamical correlation function.

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