Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Momentum-dependent scaling exponents of nodal self-energies measured in
  strange metal cuprates and modelled using semi-holography   The anomalous strange metal phase found in high-$T_c$ cuprates does not
follow the conventional condensed-matter principles enshrined in the Fermi
liquid and presents a great challenge for theory. Highly precise experimental
determination of the electronic self-energy can provide a test bed for
theoretical models of strange metals, and angle-resolved photoemission can
provide this as a function of frequency, momentum, temperature and doping. Here
we show that constant energy cuts through the nodal spectral function in
(Pb,Bi)$_{2}$Sr$_{2-x}$La$_x$CuO$_{6+\delta}$ have a non-Lorentzian lineshape,
meaning the nodal self-energy is $k$ dependent. We show that the experimental
data are captured remarkably well by a power law with a $k$-dependent scaling
exponent smoothly evolving with doping, a description that emerges naturally
from AdS/CFT-based semi-holography. This puts a spotlight on holographic
methods for the quantitative modelling of strongly interacting quantum
materials like the cuprate strange metals.

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The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
2
The categories of this paper are: math
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
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The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
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The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat