Quantum error correction for quantum memories

BM Terhal - Reviews of Modern Physics, 2015‏ - APS
Active quantum error correction using qubit stabilizer codes has emerged as a promising,
but experimentally challenging, engineering program for building a universal quantum …

Quantum memories at finite temperature

BJ Brown, D Loss, JK Pachos, CN Self… - Reviews of Modern Physics, 2016‏ - APS
To use quantum systems for technological applications one first needs to preserve their
coherence for macroscopic time scales, even at finite temperature. Quantum error correction …

Diagnostics of mixed-state topological order and breakdown of quantum memory

R Fan, Y Bao, E Altman, A Vishwanath - PRX Quantum, 2024‏ - APS
Topological quantum memory can protect information against local errors up to finite error
thresholds. Such thresholds are usually determined based on the success of decoding …

Hardness of decoding quantum stabilizer codes

P Iyer, D Poulin - IEEE Transactions on Information Theory, 2015‏ - ieeexplore.ieee.org
In this paper, we address the computational hardness of optimally decoding a quantum
stabilizer code. Much like classical linear codes, errors are detected by measuring certain …

Conservation laws and quantum error correction: Toward a generalized matching decoder

BJ Brown - IEEE BITS the Information Theory Magazine, 2022‏ - ieeexplore.ieee.org
Decoding algorithms are essential to fault-tolerant quantum-computing architectures. In this
perspective we explore decoding algorithms for the surface code; a prototypical quantum …

The stability of gapped quantum matter and error-correction with adiabatic noise

A Lavasani, S Vijay - arxiv preprint arxiv:2402.14906, 2024‏ - arxiv.org
The codespace of a quantum error-correcting code can often be identified with the
degenerate ground-space within a gapped phase of quantum matter. We argue that the …

Quantum error correction thresholds for the universal Fibonacci Turaev-Viro code

A Schotte, G Zhu, L Burgelman, F Verstraete - Physical Review X, 2022‏ - APS
We consider a two-dimensional quantum memory of qubits on a torus which encode the
extended Fibonacci string-net code and devise strategies for error correction when those …

Decoherence and wavefunction deformation of non-Abelian topological order

P Sala, J Alicea, R Verresen - arxiv preprint arxiv:2409.12948, 2024‏ - arxiv.org
The effect of decoherence on topological order (TO) has been most deeply understood for
the toric code, the paragon of Abelian TOs. We show that certain non-Abelian TOs can be …

Majorana braiding with thermal noise

FL Pedrocchi, DP DiVincenzo - Physical review letters, 2015‏ - APS
We investigate the self-correcting properties of a network of Majorana wires, in the form of a
trijunction, in contact with a parity-preserving thermal environment. As opposed to the case …

Nanowires: Exponential speedup in quantum computing

MA Mimona, MH Mobarak, E Ahmed, F Kamal… - Heliyon, 2024‏ - cell.com
This review paper examines the crucial role of nanowires in the field of quantum computing,
highlighting their importance as versatile platforms for qubits and vital building blocks for …