Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The quantum Zeno and anti-Zeno effects: from weak to strong
  system-environment coupling   By repeatedly measuring a quantum system, the evolution of the system can be
slowed down (the quantum Zeno effect) or sped up (quantum anti-Zeno effect). We
study these effects for a single two-level system coupled to a collection of
harmonic oscillators. Previously, such systems have been studied in both the
weak and the strong system-environment coupling regimes. In this paper, we
apply a polaron transformation in a manner that allows us to study the quantum
Zeno and anti-Zeno effects for a large variety of system-environment
parameters. Using this approach, we reproduce previous results for the weak and
strong system-environment coupling regimes. Moreover, as long as the
environment is super-Ohmic, we show how our approach can be used to explore
regimes such as the moderate system-environment coupling regime that could not
be investigated before in a straightforward manner.

4
The categories of this paper are: cond-mat
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The categories of this paper are: hep-ex
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The categories of this paper are: physics
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: math
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
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The categories of this paper are: astro-ph
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The categories of this paper are: acc-phys