Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of magnetic drifts on ion transport in turbulent tokamak plasmas   The stochastic advection of low energy deuterium ions is studied in a three
dimensional realistic turbulence model in conditions relevant for current
tokamak fusion experiments. The diffusion coefficients are calculated starting
from the test particles trajectories in the framework of the semi-analitical
statistical model called the Decorrelation Trajectory Method. We show that
trajectory trapping determined by the space correlation of the velocity field
is the main cause for anomalous diffusion and we obtain the transport regimes
corresponding to different values of the parameters of the turbulence model and
a trapping condition in the limit of frozen turbulence. Depending on the value
of the parameters of the model, the interaction between turbulence and magnetic
drifts leads to both an increase (with transport in the poloidal direction
increasing up to an order of magnitude) and a decrease of the particle
transport.

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The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ