Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum-critical resistivity of strange metals in a magnetic field   Resistivity in the quantum-critical fluctuation region of several metallic
compounds such as the cuprates, the heavy-fermions, Fe-chalogenides and
pnictides, twisted bi-layer graphene and WSe$_2$, is linear in temperature $T$
as well as in a magnetic field $H$. Scattering of fermions by the excitations
of a time-reversal odd polar vector field ${\bf \Omega}$ characterizing
loop-current fluctuations has been shown to give a linear in T resistivity and
other anomalous properties in the cuprates. An extension of this theory to an
applied magnetic field is presented. Magnetic field is shown to generate
vortices in the field ${\bf \Omega}$ proportional to $H_z$, the component
orthogonal to the conducting planes. The elastic scattering of fermions from
the vortices gives a resistivity linear in $H_z$. The coefficient of the linear
in $H_z$ resistivity is predicted to vary as the marginal fermi-liquid
susceptibility $\propto \ln(\frac{\omega_c}{T})$ at criticality. Quantitative
comparison with experiments is presented.

1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
19
The categories of this paper are: eess