Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A leakage-resilient approach to fault-tolerant quantum computing with
  superconducting elements   Superconducting qubits, while promising for scalability and long coherence
times, contain more than two energy levels, and therefore are susceptible to
errors generated by the leakage of population outside of the computational
subspace. Such leakage errors constitute a prominent roadblock towards
fault-tolerant quantum computing (FTQC) with superconducting qubits. FTQC using
topological codes is based on sequential measurements of multiqubit stabilizer
operators. Here, we first propose a leakage-resilient procedure to perform
repetitive measurements of multiqubit stabilizer operators, and then use this
scheme as an ingredient to develop a leakage-resilient approach for surface
code quantum error correction with superconducting circuits. Our protocol is
based on swap operations between data and ancilla qubits at the end of every
cycle, requiring read-out and reset operations on every physical qubit in the
system, and thereby preventing persistent leakage errors from occurring.

22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc