Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spontaneous orbital-selective Mott transitions and the Jahn-Teller metal
  of A$_3$C$_{60}$   The alkali-doped fullerides A$_3$C$_{60}$ are half-filled three-orbital
Hubbard systems which exhibit an unconventional superconducting phase next to a
Mott insulator. While the pairing is understood to arise from an effectively
negative Hund coupling, the highly unusual Jahn-Teller metal near the Mott
transition, featuring both localized and itinerant electrons, has not been
understood. This property is consistently explained by a previously
unrecognized phenomenon: the spontaneous transition of multiorbital systems
with negative Hund coupling into an orbital-selective Mott state. This
symmetry-broken state, which has no ordinary orbital moment, is characterized
by an orbital-dependent two-body operator (the double occupancy) or an
orbital-dependent kinetic energy, and may be regarded as a diagonal-order
version of odd-frequency superconductivity. We propose that the recently
discovered Jahn-Teller metal phase of Rb$_x$Cs$_{3-x}$C$_{60}$ is an
experimental realization of this novel state of matter.

17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom