Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Y-junction of Luttinger-liquid wires out of equilibrium   We calculate the conductances of a three-way junction of spinless
Luttinger-liquid wires as functions of bias voltages applied to three
independent Fermi-liquid reservoirs. In particular, we consider the setup that
is characteristic of a tunneling experiment, in which the strength of
electron-electron interactions in one of the arms of the junction ("tunneling
tip") is different from that in the other two arms (which together form a "main
wire"). The scaling dependence of the two independent conductances on bias
voltages is determined within a fermionic renormalization-group approach in the
limit of weak interactions. The solution shows that, in general, the
conductances scale with the bias voltages in an essentially different way
compared to their scaling with the temperature $T$. Specifically, unlike in the
two-terminal setup, the nonlinear conductances cannot be generically obtained
from the linear ones by simply replacing $T$ with the "corresponding" bias
voltage or the largest one. Remarkably, a finite tunneling bias voltage
prevents the interaction-induced breakup of the main wire into two disconnected
pieces in the limit of zero $T$ and a zero source-drain voltage.

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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: econ
0
The categories of this paper are: hep-ph
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The categories of this paper are: solv-int
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The categories of this paper are: math-ph
2
The categories of this paper are: math
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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-th