Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin squeezing in Bose-Einstein condensates: Limits imposed by
  decoherence and non-zero temperature   We consider dynamically generated spin squeezing in interacting bimodal
condensates. We show that particle losses and non-zero temperature effects in a
multimode theory completely change the scaling of the best squeezing for large
atom numbers. We present the new scalings and we give approximate analytical
expressions for the squeezing in the thermodynamic limit. Besides reviewing our
recent theoretical results, we give here a simple physical picture of how
decoherence acts to limit the squeezing. We show in particular that under
certain conditions the decoherence due to losses and non-zero temperatureacts
as a simple dephasing.

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The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
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The categories of this paper are: hep-th
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The categories of this paper are: acc-phys
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The categories of this paper are: nlin
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas