Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Doublon lifetimes in dissipative environments   We study the dissipative decay of states with a doubly occupied site in a
two-electron Hubbard model, known as doublons. For the environment we consider
charge and current noise which are modelled as a bosonic heat bath that couples
to the onsite energies and the tunnel couplings, respectively. It turns out
that the dissipative decay depends qualitatively on the type of environment as
for charge noise, the life time grows with the electron-electron interaction.
For current noise, by contrast, doublons become increasingly unstable with
larger interaction. Numerical studies within a Bloch-Redfield approach are
complemented by analytical estimates for the decay rates. For typical quantum
dot parameters, we predict that the doublon life times up to 50 ns.

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The categories of this paper are: comp-gas
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The categories of this paper are: cs
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The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-alg
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The categories of this paper are: q-fin
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The categories of this paper are: astro-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: adap-org
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The categories of this paper are: chem-ph
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph