Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chemical sensing with graphene: A quantum field theory perspective   We studied theoretically the effect of a low concentration of adsorbed polar
molecules on the optical conductivity of graphene, within the Kubo linear
response approximation. Our analysis is based on a continuum model
approximation that includes up to next to nearest neighbors in the pristine
graphene effective Hamiltonian, thus extending the field-theoretical analysis
developed in Refs.[1,2]. Our results show that the conductivity can be
expressed in terms of renormalized quasiparticle parameters $\tilde{v}_F$,
$\tilde{M}$ and $\tilde{\mu}$ that include the effect of the molecular surface
concentration $n_{dip}$ and dipolar moment $\boldsymbol{\mathcal{P}}$, thus
providing an analytical model for a graphene-based chemical sensor.

13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex