论文标题

SU(4)石墨烯中平均分数分数量子霍尔状态的极化研究

Study of polarization of even-denominator fractional quantum Hall states in SU(4) Graphene

论文作者

Indra, Moumita, Majumder, Dwipesh

论文摘要

我们专注于研究单层石墨烯中观察到的均匀分数分数量子大厅(EDFQH)。在这封信中,我们主要研究了两个EDFQH状态的极化,以填充分数$ν= 1/2,1/4 $,这在实验研究中观察到了[Nat。物理。 14,930(2018)]几年前。我们已经应用了Chern Simon的仪表场理论来解释不同极化状态的可能变异波函数,并使用库仑电位计算了其基态能量。我们已经使用与电子连接的适当的通量组合选择了最低的能量态,以用于这些EDFQH状态的不同极化状态。

We have focussed to study the even-denominator fractional quantum Hall (EDFQH) states observed in monolayer graphene. In this letter, we have studied polarization mainly for the two EDFQH states at filling fractions $ν= 1/2, 1/4$, which are observed in an experimental study [Nat. Phys. 14, 930 (2018)] a few years ago. We have applied Chern Simon's gauge field theory to explain the possible variational wave functions for different polarized states and calculated their ground state energies using the Coulomb potential. We have chosen the lowest energy states using suitable combinations of flux attached with the electrons for different polarized states of those EDFQH states.

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