Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Quantum Zeno Effect Immunizes the Avian Compass Against the
  Deleterious Effects of Exchange and Dipolar Interactions   Magnetic-sensitive radical-ion-pair reactions are understood to underlie the
biochemical magnetic compass used by avian species for navigation. Recent
experiments have provided growing evidence for the radical-ion-pair
magnetoreception mechanism, while recent theoretical advances have unravelled
the quantum nature of radical-ion-pair reactions, which were shown to manifest
a host of quantum-information-science concepts and effects, like quantum
measurement, quantum jumps and the quantum Zeno effect. We here show that the
quantum Zeno effect provides for the robustness of the avian compass mechanism,
and immunizes it's magnetic and angular sensitivity against the deleterious and
molecule-specific exchange and dipolar interactions.

14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th