Search Results for author: V. Zauner-Stauber

Found 2 papers, 2 papers with code

Faster Methods for Contracting Infinite 2D Tensor Networks

2 code implementations16 Nov 2017 M. T. Fishman, L. Vanderstraeten, V. Zauner-Stauber, J. Haegeman, F. Verstraete

We revisit the corner transfer matrix renormalization group (CTMRG) method of Nishino and Okunishi for contracting two-dimensional (2D) tensor networks and demonstrate that its performance can be substantially improved by determining the tensors using an eigenvalue solver as opposed to the power method used in CTMRG.

Strongly Correlated Electrons Quantum Physics

Variational optimization algorithms for uniform matrix product states

2 code implementations24 Jan 2017 V. Zauner-Stauber, L. Vanderstraeten, M. T. Fishman, F. Verstraete, J. Haegeman

We combine the Density Matrix Renormalization Group (DMRG) with Matrix Product State tangent space concepts to construct a variational algorithm for finding ground states of one dimensional quantum lattices in the thermodynamic limit.

Quantum Physics Strongly Correlated Electrons

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