405 citations · 888 across the 10 of their papers we have counts for
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Scaling of the thermal spectral function for quantum critical bosons in one dimension
Thomas Barthel, Ulrich Schollwöck, Subir Sachdev
We present an improved scheme for the precise evaluation of finite-temperature response functions of strongly correlated systems in the framework of the time-dependent density matr…
Chebyshev matrix product state approach for spectral functions
Andreas Holzner, Andreas Weichselbaum, Ian P. McCulloch +2
We show that recursively generated Chebyshev expansions offer numerically efficient representations for calculating zero-temperature spectral functions of one-dimensional lattice m…
Spectral functions in one-dimensional quantum systems at T>0
Thomas Barthel, Ulrich Schollwöck, Steven R. White
We present for the first time time-dependent density-matrix renormalization-group simulations (t-DMRG) at finite temperatures. It is demonstrated how a combination of finite-temper…
Vector chiral order in frustrated spin chains
I. P. McCulloch, R. Kube, M. Kurz +3
By means of a numerical analysis using a non-Abelian symmetry realization of the density matrix renormalization group, we study the behavior of vector chirality correlations in iso…
Edge singularities in high-energy spectra of gapped one-dimensional magnets in strong magnetic fields
A. Friedrich, A. K. Kolezhuk, I. P. McCulloch +1
We use the dynamical density matrix renormalization group technique to show that the high-energy part of the spectrum of a S=1 Haldane chain, placed in a strong external magnetic f…
Variational matrix product state approach to quantum impurity models
A. Weichselbaum, F. Verstraete, U. Schollwöck +2
We present a unified framework for renormalization group methods, including Wilson's numerical renormalization group (NRG) and White's density-matrix renormalization group (DMRG),…