Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Qubits with electrons on liquid helium   We study dissipation effects for electrons on the surface of liquid helium,
which may serve as qubits of a quantum computer. Each electron is localized in
a 3D potential well formed by the image potential in helium and the potential
from a submicron electrode submerged into helium. We estimate parameters of the
confining potential and characterize the electron energy spectrum. Decay of the
excited electron state is due to two-ripplon scattering and to scattering by
phonons in helium. We identify mechanisms of coupling to phonons and estimate
contributions from different scattering mechanisms. Even in the absence of a
magnetic field we expect the decay rate to be $\alt 10^4$ s$^{-1}$. We also
calculate the dephasing rate, which is due primarily to ripplon scattering off
an electron. This rate is $\alt 10^2$ s$^{-1}$ for typical operation
temperatures.

15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int