Dicke-Ising 模型中的束缚极化子态
量子物理
2025-03-17 v3 强关联电子
摘要
我们报告了对杂化光-物质激发态的研究，使用 Dicke-Ising 模型作为理论框架。利用线性响应理论，我们在热力学极限下推导了该系统的精确激发态。我们的结果表明，腔体可以局域化自旋激发态，导致形成束缚极化子，其中腔体作为两个激发态能带中的杂质，围绕单个自旋域局域化自旋波对。我们推导了这些束缚态存在的条件，并讨论其在不同 regime 下的满足情况。最后，我们显示这些效应在有限系统中通过精确对角化计算仍然存在。
关键词
引用
@article{arxiv.2406.11957,
title = {Bound polariton states in the Dicke-Ising model},
author = {Juan Román-Roche and Álvaro Gómez-León and Fernando Luis and David Zueco},
journal= {arXiv preprint arXiv:2406.11957},
year = {2025}
}
备注
Significant changes with respect to the second version. It was formerly a letter accompanying a longer paper (arXiv:2406.11971v2). The letter was not accepted for publication and we have modified the manuscript into a paper focused on the main result of the former letter. Readers interested in the theoretical part of the former letter can read arXiv:2406.11971