Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Error Correction with the Gottesman-Kitaev-Preskill Code   The Gottesman-Kitaev-Preskill (GKP) code was proposed in 2001 by Daniel
Gottesman, Alexei Kitaev, and John Preskill as a way to encode a qubit in an
oscillator. The GKP codewords are coherent superpositions of periodically
displaced squeezed vacuum states. Because of the challenge of merely preparing
the codewords, the GKP code was for a long time considered to be impractical.
However, the remarkable developments in quantum hardware and control technology
in the last two decades has made the GKP code a frontrunner in the race to
build practical, fault-tolerant bosonic quantum technology. In this
Perspective, we provide an overview of the GKP code with emphasis on its
implementation in the circuit-QED architecture and present our outlook on the
challenges and opportunities for scaling it up for hardware-efficient,
fault-tolerant quantum error correction.

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The categories of this paper are: q-alg
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The categories of this paper are: econ
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The categories of this paper are: hep-th
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The categories of this paper are: acc-phys
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The categories of this paper are: physics
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: solv-int
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The categories of this paper are: cs
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The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: cmp-lg