Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Detecting Kondo Entanglement by Electron Conductance   Quantum entanglement between an impurity spin and electrons nearby is a key
property of the single-channel Kondo effects. We show that the entanglement can
be detected by measuring electron conductance through a double quantum dot in
an orbital Kondo regime. We derive a relation between the entanglement and the
conductance, when the SU(2) spin symmetry of the regime is weakly broken. The
relation reflects the universal form of many-body states near the Kondo fixed
point. Using it, the spatial distribution of the entanglement, hence, the Kondo
cloud, can be detected, with breaking the symmetry spatially nonuniformly by
electrical means.

15
The categories of this paper are: nucl-ex
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The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
1
The categories of this paper are: cs
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The categories of this paper are: math-ph
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The categories of this paper are: econ
16
The categories of this paper are: stat
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin