Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Critical properties of projected SO(5) models at finite temperatures   We consider the projected SO(5) bosonic model introduced in order to connect
the SO(5) theory of high-T$_c$ superconductivity with the physics of the
Mott-insulating gap, and derive the corresponding effective functional
describing low-energy degrees of freedom. At the
antiferromagnetic-superconducting transition, SO(5) symmetry-breaking effects
due to the gap are purely quantum mechanical and become irrelevant in the
neighborhood of a possible finite-temperature multicritical point separating
the normal from the antiferromagnetic and the superconducting phases. A
difference in the magnon and hole-pair mobility always takes the system away
from the SO(5)-symmetric fixed point towards a region of instability, and the
phase transition between the normal and the two ordered phases becomes first
order before merging into the antiferromagnetic-superconducting line. Quantum
fluctuations at intermediate temperatures, while introducing symmetry-breaking
terms in the case of equal mobilities, tend to cancel the symmetry-breaking
effects in the case of different mobilities.

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The categories of this paper are: astro-ph
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The categories of this paper are: q-fin
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
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The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph