Generating Function for Projected Entangled-Pair States

• Published in: PRX quantum Vol. 5; no. 1; p. 010335
• Main Authors: Tu, Wei-Lin, Vanderstraeten, Laurens, Schuch, Norbert, Lee, Hyun-Yong, Kawashima, Naoki, Chen, Ji-Yao
• Format: Journal Article
• Language: English
• Published: American Physical Society 01.03.2024

Diagrammatic summation is a common bottleneck in modern applications of projected entangled-pair states, especially in computing low-energy excitations of a two-dimensional quantum many-body system. To solve this problem, here we extend the generating-function approach for tensor-network diagrammati...