作者: KAREN HALLBERG
DOI: 10.1142/S0217979206035102
关键词: Degrees of freedom 、 Physics 、 Spectral properties 、 Complex problems 、 Density matrix renormalization group 、 Hubbard model 、 Dynamical mean field theory 、 Statistical physics
摘要: Since its inception, the DMRG method has been a very powerful tool for calculation of physical properties low-dimensional strongly correlated systems. It adapted to obtain dynamical and consider finite temperature, time-dependent problems, bosonic degrees freedom, treatment classical problems non-equilibrium systems, among others. We will briefly review then concentrate on latest developments, describing some recent successful applications. In particular we show how can be used together with Dynamical Mean Field Theory (DMFT) solve associated impurity problem in infinite-dimensional Hubbard model. This is spectral With this algorithm, more complex having larger number freedom considered finite-size effects minimized.