Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Benchmarking a high-fidelity mixed-species entangling gate   We implement a two-qubit logic gate between a $^{43}\mathrm{Ca}^+\,$
hyperfine qubit and a $^{88}\mathrm{Sr}^+\,$ Zeeman qubit. For this pair of ion
species, the S--P optical transitions are close enough that a single laser of
wavelength $402\,\mathrm{nm}$ can be used to drive the gate, but sufficiently
well separated to give good spectral isolation and low photon scattering
errors. We characterize the gate by full randomized benchmarking, gate set
tomography and Bell state analysis. The latter method gives a fidelity of
$99.8(1)\%$, comparable to that of the best same-species gates and consistent
with known sources of error.

34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg