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Density matrix renormalization group for bosonic quantum Hall effect

机译:玻色子量子霍尔效应的密度矩阵重整化群

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We developed a density matrix renormalization group technique to study quantum Hall fractions of fast rotating bosons. In this paper, we present a discussion of the method together with the results which we obtain in three distinct cases of the narrow-channel, cylinder, and spherical geometries. In the narrow-channel case, which is relevant to anisotropic confining traps in the limit of extremely fast rotation, we find a series of zero-temperature phase transitions in the strongly interacting regime as a function of the interaction strength between bosons. We compute energies and density profiles for different filling fractions on a cylinder and compare the convergence rates of the method in the cylinder and a sphere geometries.
机译:我们开发了一种密度矩阵重整化组技术来研究快速旋转玻色子的量子霍尔分数。在本文中,我们对方法进行了讨论,并在窄通道,圆柱体和球形几何形状的三种不同情况下获得了结果。在窄通道情况下,这与极快旋转的极限中的各向异性约束圈闭有关,我们发现在强相互作用状态下一系列零温相变是玻色子之间相互作用强度的函数。我们计算圆柱体上不同填充分数的能量和密度分布,并比较圆柱体和球体几何中该方法的收敛速度。

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