Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mean-field dynamics of a non-Hermitian Bose-Hubbard dimer   We investigate an $N$-particle Bose-Hubbard dimer with an additional
effective decay term in one of the sites. A mean-field approximation for this
non-Hermitian many-particle system is derived, based on a coherent state
approximation. The resulting nonlinear, non-Hermitian two-level dynamics, in
particular the fixed point structures showing characteristic modifications of
the self-trapping transition, are analyzed. The mean-field dynamics is found to
be in reasonable agreement with the full many-particle evolution.

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The categories of this paper are: q-bio
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The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
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The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: cs
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The categories of this paper are: hep-lat
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The categories of this paper are: econ
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an