Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-hermiticity in a kicked model: Decoherence and the semiclassical
  limit   We study the effects of non-hermitian perturbation on a quantum kicked model
exhibiting a localization transition. Using an exact renormalization scheme, we
show that the critical line separating the extended and localized phases
approaches its semiclassical limit as the imaginary part of the kicking
parameter is steadily increased. Further, the metastability of the quantum
states appears to be directly correlated with the deviation between the
semi-classical and quantum results. This direct evidence of quantum-classical
correspondence suggests that non-hermitian perturbations may be used to model
decoherence.

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The categories of this paper are: physics
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an