Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transport signatures of an Andreev molecule in a quantum dot --
  superconductor -- quantum dot setup   Hybrid devices combining quantum dots with superconductors are important
building blocks of conventional and topological quantum-information
experiments. A requirement for the success of such experiments is to understand
the various tunneling-induced non-local interaction mechanisms, namely, crossed
Andreev reflection, elastic cotunneling, and direct interdot tunneling, that
are present in the device. Here, we provide a theoretical study of a simple
device which consists of two quantum dots and a superconductor tunnel-coupled
to the dots, often called a Cooper-pair splitter. We study the three special
cases where one of the three non-local mechanisms dominates, and calculate
measurable ground-state properties, as well as the zero-bias and finite-bias
differential conductance characterizing electron transport through this device.
We describe how each non-local mechanism controls the measurable quantities,
and thereby find experimental fingerprints that allow one to identify and
quantify the dominant non-local mechanism using experimental data. Finally, we
study the triplet blockade effect and the associated negative differential
conductance in the Cooper-pair splitter, and show that they can arise
regardless of the nature of the dominant non-local coupling mechanism. Our
results should facilitate the characterization of hybrid devices, and their
optimization for various quantum-information-related experiments and
applications.

22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an