paper

Variational optimization of tensor-network states with the honeycomb-lattice corner transfer matrix

arXiv:2209.03428 · doi:10.1103/PhysRevB.107.054424

Abstract

We develop a method of variational optimization of the infinite projected entangled pair states on the honeycomb lattice. The method is based on the automatic differentiation of the honeycomb-lattice corner transfer matrix renormalization group. We apply the approach to the antiferromagnetic Heisenberg spin-1/2 and ferromagnetic Kitaev models on the honeycomb lattice. The developed formalism gives quantitatively accurate results for the main physical observables and has a necessary potential for further extensions.

7 pages, 7 figures, published version

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