论文标题
保真度方法：激发能量的有限尺寸水平交叉的误导性作用
Fidelity approach: the misleading role of finite size level crossing of excited energies
论文作者
论文摘要
在这里，我们表明，尽管量子保真度可以真正识别出具有横向磁场中最接近和下一个最接近的邻居相互作用的一维旋转1/2量子ISING模型的两个量子相变，但它可能不是分析其地面相图的合适方法。
Here, we show that, although quantum fidelity can truly identify two quantum phase transitions of a one-dimensional spin-1/2 quantum Ising model with competing nearest and next-nearest neighbour interactions in a transverse magnetic field, it may not be a suitable approach for analyzing its ground-state phase diagram.
