DMRG and periodic boundary conditions: a quantum information perspective
F. Verstraete, D. Porras, and J. I. Cirac
TL;DR
This paper offers a quantum information perspective on DMRG, leading to modifications that significantly improve results for periodic boundary conditions by leveraging entanglement and teleportation concepts.
Contribution
It introduces a novel quantum information framework for DMRG, enhancing its effectiveness with periodic boundary conditions through new modifications.
Findings
Improved DMRG results for periodic boundary conditions
Quantum information perspective clarifies DMRG features
Enhanced understanding of entanglement in DMRG
Abstract
We introduce a picture to analyze the density matrix renormalization group (DMRG) numerical method from a quantum information perspective. This leads us to introduce some modifications for problems with periodic boundary conditions in which the results are dramatically improved. The picture also explains some features of the method in terms of entanglement and teleportation.
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