Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multiple crossovers and coherent states in a Mott-Peierls insulator   We consider the dimer Hubbard model within Dynamical Mean Field Theory to
study the interplay and competition between Mott and Peierls physics. We
describe the various metal-insulator transition lines of the phase diagram and
the break down of the different solutions that occur along them. We focus on
the specific issue of the debated Mott-Peierls insulator crossover and describe
the systematic evolution of the electronic structure across the phase diagram.
We found that at low intra-dimer hopping the emerging local magnetic moments
can unbind above a characteristic singlet temperature $T^*$. Upon increasing
the inter-dimer hopping subtle changes occur in the electronic structure.
Notably, we find Hubbard bands of a mix character with coherent and incoherent
excitations. We argue that this state is relevant for VO$_2$ and its signatures
may be observed in spectroscopic studies, and possibly through pump-probe
experiments.

34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph