Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Towards the identification of a quantum critical line in the (p, B)
  phase diagram of CeCoIn5   The low-temperature thermal expansion of CeCoIn5 single crystals measured
parallel and perpendicular to magnetic fields B oriented along the c axis
yields the volume thermal-expansion coefficient $\beta$. Considerable
deviations of $\beta(T)$ from Fermi-liquid behavior occur already within the
superconducting region of the (B, T) phase diagram and become maximal at the
upper critical field $B^0_{c2}$. However, $\beta(T)$ and the Gr\"uneisen
parameter $\Gamma$ are incompatible with a quantum critical point (QCP) at
$B^0_{c2}$, but allow for a QCP shielded by superconductivity and extending to
negative pressures for $B < B^0_{c2}$. Together with literature data we
construct a tentative (p, B, T) phase diagram of CeCoIn5 suggesting a quantum
critical line in the (p, B) plane.

5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
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The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: econ
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The categories of this paper are: eess
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The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph