Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phonon Decoherence of a Double Quantum Dot Charge Qubit   We study decoherence of a quantum dot charge qubit due to coupling to
piezoelectric acoustic phonons in the Born-Markov approximation. After
including appropriate form factors, we find that phonon decoherence rates are
one to two orders of magnitude weaker than was previously predicted. We
calculate the dependence of the Q-factor on lattice temperature, quantum dot
size, and interdot coupling. Our results suggest that mechanisms other than
phonon decoherence play a more significant role in current experimental setups.

30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ