Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum pathology of static internal imperfections in flawed quantum
  computers   Even in the absence of external influences the operability of a quantum
computer (QC) is not guaranteed because of the effects of residual one- and
two-body imperfections. Here we investigate how these internal flaws affect the
performance of a quantum controlled-NOT (CNOT) gate in an isolated flawed QC.
First we find that the performance of the CNOT gate is considerably better when
the two-body imperfections are strong. Secondly, we find that the largest
source of error is due to a coherent shift rather than decoherence or
dissipation. Our results suggest that the problem of internal imperfections
should be given much more attention in designing scalable QC architectures.

30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph