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arXiv:2107.02194quant-ph

Dynamically Generated Logical Qubits

Matthew B. Hastings, Jeongwan Haah

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Abstract

We present a quantum error correcting code with dynamically generated logical qubits. When viewed as a subsystem code, the code has no logical qubits. Nevertheless, our measurement patterns generate logical qubits, allowing the code to act as a fault-tolerant quantum memory. Our particular code gives a model very similar to the two-dimensional toric code, but each measurement is a two-qubit Pauli measurement.

arXiv comments
18 pages, 7 figures; v2 final version accepted in Quantum
Journal reference
Quantum 5, 564 (2021)
DOI
doi:10.22331/q-2021-10-19-564
Subjects
quant-phQuantum Physics

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  1. Quantum Computing – An Update 1 comment

    • Overall this article looks pretty good. There was one major numerical error I noticed, but then the article corrected itself at the end. This was the error: > With an error rate of 1% the surface error correction code requires ~ 500 physical qubits required to encode one logical…

      StrilancView on HNParent context

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