Dynamically Generated Logical Qubits

Matthew B. Hastings; Jeongwan Haah

doi:10.22331/q-2021-10-19-564

Dynamically Generated Logical Qubits

Quantum Physics 2021-10-20 v2

Authors: 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.

Keywords

quantum error correction fault-tolerant quantum computation quantum computing

Cite

@article{arxiv.2107.02194,
  title  = {Dynamically Generated Logical Qubits},
  author = {Matthew B. Hastings and Jeongwan Haah},
  journal= {arXiv preprint arXiv:2107.02194},
  year   = {2021}
}

Comments

18 pages, 7 figures; v2 final version accepted in Quantum

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