Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement switching via the Kondo effect in triple quantum dots   We consider a triple quantum dot system in a triangular geometry with one of
the dots connected to metallic leads. Using Wilson's numerical renormalization
group method, we investigate quantum entanglement and its relation to the
thermodynamic and transport properties, in the regime where each of the dots is
singly occupied on average, but with non-negligible charge fluctuations. It is
shown that even in the regime of significant charge fluctuations the formation
of the Kondo singlets induces switching between separable and perfectly
entangled states. The quantum phase transition between unentangled and
entangled states is analyzed quantitatively and the corresponding phase diagram
is explained by exactly solvable spin model.

20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin