Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin bottleneck in resonant tunneling through double quantum dots with
  different Zeeman splittings   We investigated the electron transport property of the InGaAs/GaAs double
quantum dots, the electron g-factors of which are different from each other. We
found that in a magnetic field, the resonant tunneling is suppressed even if
one of the Zeeman sublevels is aligned. This is because the other misaligned
Zeeman sublevels limit the total current. A finite broadening of the misaligned
sublevel partially relieves this bottleneck effect, and the maximum current is
reached when interdot detuning is half the Zeeman energy difference.

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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
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The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
18
The categories of this paper are: econ
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The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-bio
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The categories of this paper are: nlin
2
The categories of this paper are: math
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The categories of this paper are: stat