Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing context-dependent errors in quantum processors   Gates in error-prone quantum information processors are often modeled using
sets of one- and two-qubit process matrices, the standard model of quantum
errors. However, the results of quantum circuits on real processors often
depend on additional external "context" variables. Such contexts may include
the state of a spectator qubit, the time of data collection, or the temperature
of control electronics. In this article we demonstrate a suite of simple,
widely applicable, and statistically rigorous methods for detecting context
dependence in quantum circuit experiments. They can be used on any data that
comprise two or more "pools" of measurement results obtained by repeating the
same set of quantum circuits in different contexts. These tools may be
integrated seamlessly into standard quantum device characterization techniques,
like randomized benchmarking or tomography. We experimentally demonstrate these
methods by detecting and quantifying crosstalk and drift on the publicly
accessible 16-qubit ibmqx3.

35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat