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7 papers · 2 filters
Orbital currents and charge density waves in a generalized Hubbard ladder
J. O. Fjaerestad, J. B. Marston, U. Schollwoeck
We study a generalized Hubbard model on the two-leg ladder at zero temperature, focusing on a parameter region with staggered flux (SF)/d-density wave (DDW) order. To guide our num…
The ALPS project: open source software for strongly correlated systems
F. Alet, P. Dayal, A. Grzesik +15
We present the ALPS (Algorithms and Libraries for Physics Simulations) project, an international open source software project to develop libraries and application programs for the…
The density-matrix renormalization group
Ulrich Schollwoeck
The density-matrix renormalization group (DMRG) is a numerical algorithm for the efficient truncation of the Hilbert space of low-dimensional strongly correlated quantum systems ba…
Structural aspects of metamagnetism in Ca_{2-x}Sr_{x}RuO_4 (0.2 < x < 0.5): field tuning of orbital occupation
M. Kriener, P. Steffens, J. Baier +12
The crystal structure of Ca_{2-x}Sr_xRuO_4 with 0.2 < x < 1.0 has been studied by diffraction techniques and by high resolution capacitance dilatometry as a function of temperature…
Well-defined quasiparticles in interacting metallic grains
Dominique Gobert, Moshe Schechter, Ulrich Schollwock +1
We analyze spectral functions of mesoscopic systems with large dimensionless conductance, which can be described by a universal Hamiltonian. We show that an important class of spec…
Time-dependent density-matrix renormalization-group using adaptive effective Hilbert spaces
A. J. Daley, C. Kollath, U. Schollwoeck +1
An algorithm for the simulation of the evolution of slightly entangled quantum states has been recently proposed as a tool to study time-dependent phenomena in one-dimensional quan…