Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Symmetry induced hole-spin mixing in quantum dot molecules   We investigate theoretically the spin purity of single holes confined in
vertically coupled GaAs/AlGaAs quantum dots (QDs) under longitudinal magnetic
fields. A unique behavior is observed for triangular QDs, by which the spin is
largely pure when the hole is in one of the dots, but it becomes strongly mixed
when an electric field is used to drive it into molecular resonance. The spin
admixture is due to the valence band spin-orbit interaction, which is greatly
enhanced in C3h symmetry environments. The strong yet reversible electrical
control of hole spin suggests that molecules with C3-symmetry QDs, like those
obtained with [111] growth, can outperform the usual C2-symmetry QDs obtained
with [001] growth for the development of scalable qubit architectures.

35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org