一维Hubbard模型电子输运性质的准粒子描述
强关联电子
2016-08-31 v1
摘要
我们将Hubbard链的准粒子输运描述扩展到所有能量尺度。特别地，我们计算了任何Bethe-ansatz态输运的电流平均值以及电荷载流子的输运质量。我们给出了模型在半填充时U/t=3和4的光学电导率的数值结果。我们表明，这些结果与涉及新准粒子能带的有限能量跃迁的准粒子描述非常吻合。
引用
@article{arxiv.cond-mat/9612123,
title = {Pseudoparticle Description of the 1D Hubbard Model Electronic Transport Properties},
author = {N. M. R. Peres and J. M. P. Carmelo and D. K. Campbell and A. W. Sandvik},
journal= {arXiv preprint arXiv:cond-mat/9612123},
year = {2016}
}
备注
4 pages, RevTex, one figure (can be obtained upon request from [email protected]). To apper in the Proceedings of the Euroconference on "Correlations in Unconventional Quantum Liquids" in Zeitschrift f\"ur Physik B- Condensed Matter (Dedicated to the memory of Sir Rudolph Peierls)