论文标题
$ν= 2+4/9 $的分数量子厅效应
Fractional Quantum Hall Effect at $ν=2+4/9$
论文作者
论文摘要
Motivated by two independent experiments revealing a resistance minimum at the Landau level (LL) filling factor $ν=2+4/9$, characteristic of the fractional quantum Hall effect (FQHE) and suggesting electron condensation into a yet unknown quantum liquid, we propose that this state likely belongs in a parton sequence, put forth recently to understand the emergence of FQHE at $ν=2+6/13$.虽然这里提出的$ν= 2+4/9 $状态直接遵循三个简单的parton状态，所有这些状态都在第二个LL中发生，但它与Jain复合费米（CF）状态在拓扑上是不同的，该状态在相同的$ν= 4/9 $填充最低ll的情况下发生。我们预测$ 4/9 $ Parton State的实验可测量性能，该属性可以揭示其潜在的拓扑结构，并确定将其与$ 4/9 $ JAIN CF状态区分开。
Motivated by two independent experiments revealing a resistance minimum at the Landau level (LL) filling factor $ν=2+4/9$, characteristic of the fractional quantum Hall effect (FQHE) and suggesting electron condensation into a yet unknown quantum liquid, we propose that this state likely belongs in a parton sequence, put forth recently to understand the emergence of FQHE at $ν=2+6/13$. While the $ν=2+4/9$ state proposed here directly follows three simpler parton states, all known to occur in the second LL, it is topologically distinct from the Jain composite fermion (CF) state which occurs at the same $ν=4/9$ filling of the lowest LL. We predict experimentally measurable properties of the $4/9$ parton state that can reveal its underlying topological structure and definitively distinguish it from the $4/9$ Jain CF state.
