Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chiral magnetic effect (CME) at low temperature from instanton vacuum   In this talk, we report our present work on the chiral magnetic effect (CME)
under a strong magnetic field at low temperature. To this end, we use the
instanton vacuum with the finite instanton-number fluctuation Delta, which
relates to the nontrivial topological charge Q_t. We compute the vacuum
expectation values of the local chiral density <rho_chi>, chiral charge density
<n_chi> and induced electromagnetic current <j_mu>. We observed that the
longitudinal EM current is much larger than the transverse one,
|j_perp/j_parallel| ~ Q_t, and the <n_chi> equals to the |<j_(3,4)>|. It also
turns out that the CME becomes insensitive to the magnetic field as T
increases, since the instanton effect decreases.

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The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics