$J_1-J_2$ 模型基态的粗暴正化
量子物理
2026-05-05 v1 无序系统与神经网络
强关联电子
摘要
探索量子波函数符号结构引起广泛关注，因为这有助于推进复杂物相建模。 stimulate developing different optimization procedures for imitating and manipulating sign structures of quantum states. In this work, utilizing a brute force approach based on a set of single-qubit transformations we evaluate protocols enabling positivization of the one-dimensional model ground states in the regime of strong frustration. Based on the obtained positivization results, we show the difference between the cases of periodic and open boundary conditions, and also establish the dependence of the sign structure on parity of the simulated spin chains.
关键词
引用
@article{arxiv.2511.17957,
title = {Brute-force positivization of $J_1-J_2$ model ground states},
author = {P. A. Bannykh and O. M. Sotnikov and V. V. Mazurenko},
journal= {arXiv preprint arXiv:2511.17957},
year = {2026}
}