Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gate-Tunable Fractional Chern Insulators in Twisted Double Bilayer
  Graphene   We predict twisted double bilayer graphene to be a versatile platform for the
realization of fractional Chern insulators readily targeted by tuning the gate
potential and the twist angle. Remarkably, these topologically ordered states
of matter, including spin singlet Halperin states and spin polarized states in
Chern number $\mathcal C=1$ and $\mathcal{C}= 2$ bands, occur at high
temperatures and without the need for an external magnetic field.

27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph