Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Zeno and anti-Zeno effects on decay in dissipative quantum systems   We point out that the quantum Zeno effect, i.e., inhibition of spontaneous
decay by frequent measurements, is observable only in spectrally finite
reservoirs, i.e., in cavities and waveguides, using a sequence of
evolution-interrupting pulses or randomly-modulated CW fields. By contrast,
such measurements can only accelerate decay in free space.

31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol