Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Low-Overhead Hybrid Approach for Universal Fault-Tolerant Quantum
  Computation   As there is no quantum error correction code with universal set of
transversal gates, several approaches have been proposed which, in combination
of transversal gates, make universal fault-tolerant quantum computation
possible. Magic state distillation, code switching, code concatenation and
pieceable fault-tolerance are well-known examples of such approaches. However,
the overhead of these approaches is one of the main bottlenecks for large-scale
quantum computation. In this paper, a hybrid approach is proposed which
combines the code concatenation technique with the other mentioned approaches.
The proposed approach outperforms code concatenation in terms of both number of
qubits and error threshold and also significantly reduces the resource overhead
of code switching, magic state distillation and pieceable fault-tolerance at
the cost of reducing the effective distance of the concatenated code for
implementing non-transversal gates.

17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th