Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fingerprints of quantum criticality in locally resolved transport   Understanding electrical transport in strange metals, including the seeming
universality of Planckian $T$-linear resistivity, remains a longstanding
challenge in condensed matter physics. We propose that local imaging
techniques, such as nitrogen vacancy center magnetometry, can locally identify
signatures of quantum critical response which are invisible in measurements of
a bulk electrical resistivity. As an illustrative example, we use a minimal
holographic model for a strange metal in two spatial dimensions to predict how
electrical current will flow in regimes dominated by quantum critical dynamics
on the Planckian length scale. We describe the crossover between quantum
critical transport and hydrodynamic transport (including Ohmic regimes), both
in charge neutral and finite density systems. We compare our holographic
predictions to experiments on charge neutral graphene, finding quantitative
agreement with available data; we suggest further experiments which may
determine the relevance of our framework to transport on Planckian scales in
this material. More broadly, we propose that locally imaged transport be used
to test the universality (or lack thereof) of microscopic dynamics in the
diverse set of quantum materials exhibiting $T$-linear resistivity.

20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th