论文标题
$ s = 1 $ kitaev模型中量子自旋液态状态的自旋传输：分数化准粒子的作用
Spin transport in the Quantum Spin Liquid State in the $S=1$ Kitaev model: role of the fractionalized quasiparticles
论文作者
论文摘要
我们使用精确的对角线化方法研究了其中一个边缘中脉冲磁场的刺激，研究了$ s = 1 $ kitaev模型的实时自旋响应。发现脉冲磁场对量子自旋液体区域中自旋矩的外观没有影响，但是用小磁场诱导另一个边缘区域的自旋振荡。这是通过巡回准颗粒的存在来理解的，巡回的准颗粒在量子自旋液态中带有旋转激发而没有自旋极化。这表明旋转分数发生在$ s = 1 $ kitaev模型中，以及确切的可解决的$ s = 1/2 $ kitaev One，而分数化的准粒子在自旋传输中起着至关重要的作用。
We investigate the real-time spin response of the $S=1$ Kitaev model upon stimuli of a pulsed magnetic field in one of the edges using the exact diagonalization method. It is found that the pulsed magnetic field has no effect on the appearance of the spin moments in the quantum spin liquid region, but induces the spin oscillations in the other edge region with a small magnetic field. This is understood by the existence of the itinerant quasiparticles, which carry the spin excitations without the spin polarization in the quantum spin liquid state. This suggests that the spin fractionalizations occur in the $S=1$ Kitaev model as well as the exactly solvable $S=1/2$ Kitaev one and the fractionalized quasiparticles play an essential role in the spin transport.
