Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin-valley qubits in gated quantum dots in a single layer of transition
  metal dichalcogenides   We develop a microscopic and atomistic theory of electron spin-based qubits
in gated quantum dots in a single layer of transition metal dichalcogenides.
The qubits are identified with two degenerate locked spin and valley states in
a gated quantum dot. The two-qubit states are accurately described using a
multi-million atom tight-binding model solved in wavevector space. The
spin-valley locking and strong spin-orbit coupling result in two degenerate
states, one of the qubit states being spin-down located at the $+K$ valley of
the Brillouin zone, and the other state located at the $-K$ valley with spin
up. We describe the qubit operations necessary to rotate the spin-valley qubit
as a combination of the applied vertical electric field, enabling spin-orbit
coupling in a single valley, with a lateral strongly localized valley-mixing
gate.

13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom