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Simulation of rare events in quantum error correction

2013/08/31 by Sergey Bravyi, Alexander Vargo · 6 citations
Computer Science · Engineering · Mathematics · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Algorithm #Code (set theory) #Computer science #Error detection and correction #Exponential function #Lattice (music) #Mathematical analysis #Mathematics #Monte Carlo method #Pauli exclusion principle #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum and electron transport phenomena #Quantum computer #Quantum error correction #Quantum mechanics #Statistical physics #Statistics #quant-ph

paper · pdf · doi:10.1103/physreva.88.062308

published as Phys. Rev. A 88, 062308 (2013) · 16 pages, 11 figures. Version 3: added a new reference

openalex publication_date 2013/12/05 · arxiv created 2013/12/17 · arxiv updated 2013/12/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We consider the problem of calculating the logical error probability for a stabilizer quantum code subject to random Pauli errors. To access the regime of large code distances where logical errors are extremely unlikely we adopt the splitting method widely used in Monte Carlo simulations of rare events and Bennett's acceptance ratio method for estimating the free energy difference between two canonical ensembles. To illustrate the power of these methods in the context of error correction, we calculate the logical error probability PL for the two-dimensional surface code on a square lattice with a pair of holes for all code distances d\ensuremath≤20 and all error rates p below the fault-tolerance threshold. Our numerical results confirm the expected exponential decay PL\ensuremath∼exp[\ensuremath-\ensuremathα(p)d] and provide a simple fitting formula for the decay rate \ensuremathα(p). Both noiseless and noisy syndrome readout circuits are considered.

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