Past Seminars Seminários Já Decorridos 2012

Dynamical correlation functions of the Hubbard model and dimensional crossover

By: Pedro Sacramento
From: IST
At: Instituto de Investigação Interdisciplinar, Anfiteatro
[2012-01-24] 11:30

The exact solution of the Hubbard model in 1d is used to calculate dynamical correlation functions. The results compare well with experimental results for TTF-TCNQ showing evidence for charge-spin separation. We also consider the coupling between Hubbard chains and study the crossover from a Luttinger liquid like behavior in 1d to a Fermi liquid like behavior in higher dimensions.