Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quadrature coherence scale driven fast decoherence of bosonic quantum
  field states   We introduce, for each state of a bosonic quantum field, its quadrature
coherence scale (QCS), a measure of the range of its quadrature coherences.
Under coupling to a thermal bath, the purity and QCS are shown to decrease on a
time scale inversely proportional to the QCS squared. The states most fragile
to decoherence are therefore those with quadrature coherences far from the
diagonal. We further show a large QCS is difficult to measure since it induces
small scale variations in the state's Wigner function. These two observations
imply a large QCS constitutes a mark of "macroscopic coherence". Finally, we
link the QCS to optical classicality: optical classical states have a small QCS
and a large QCS implies strong optical nonclassicality.

8
The categories of this paper are: hep-ex
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The categories of this paper are: cs
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph