Magic state cultivation: growing T states as cheap as CNOT gates

C Gidney, N Shutty, C Jones - arXiv preprint arXiv:2409.17595, 2024 - arxiv.org
We refine ideas from Knill 1996, Jones 2016, Chamberland 2020, Gidney 2023+ 2024,
Bombin 2024, and Hirano 2024 to efficiently prepare good $| T\rangle $ states. We call our …

Efficient fault-tolerant code switching via one-way transversal CNOT gates

S Heußen, J Hilder - arXiv preprint arXiv:2409.13465, 2024 - arxiv.org
Code switching is an established technique that facilitates a universal set of FT quantum
gate operations by combining two QEC codes with complementary sets of gates, which each …

Experiments with the 4D Surface Code on a QCCD Quantum Computer

N Berthusen, J Dreiling, C Foltz, JP Gaebler… - arXiv preprint arXiv …, 2024 - arxiv.org
Single-shot quantum error correction has the potential to speed up quantum computations
by removing the need for multiple rounds of syndrome extraction in order to be fault-tolerant …

Fault-tolerant optical interconnects for neutral-atom arrays

J Sinclair, J Ramette, B Grinkemeyer… - arXiv preprint arXiv …, 2024 - arxiv.org
We analyze the use of photonic links to enable large-scale fault-tolerant connectivity of
locally error-corrected modules based on neutral atom arrays. Our approach makes use of …

Fermion-qubit fault-tolerant quantum computing

A Schuckert, E Crane, AV Gorshkov, M Hafezi… - arXiv preprint arXiv …, 2024 - arxiv.org
Simulating the dynamics of electrons and other fermionic particles in quantum chemistry,
material science, and high-energy physics is one of the most promising applications of fault …

Single-shot and measurement-based quantum error correction via fault complexes

T Hillmann, G Dauphinais, I Tzitrin… - arXiv preprint arXiv …, 2024 - arxiv.org
Photonics provides a viable path to a scalable fault-tolerant quantum computer. The natural
framework for this platform is measurement-based quantum computation, where fault …

Low-cost noise reduction for Clifford circuits

N Delfosse, E Tham - arXiv preprint arXiv:2407.06583, 2024 - arxiv.org
We propose a Clifford noise reduction (CliNR) scheme that provides a reduction of the
logical error rate of Clifford circuit with lower overhead than error correction and without the …

Integrating Window-Based Correlated Decoding with Constant-Time Logical Gates for Large-Scale Quantum Computation

J Zhang, ZY Chen, JN Li, TH Wei, HY Liu… - arXiv preprint arXiv …, 2024 - arxiv.org
Large-scale quantum computation requires to be performed in the fault-tolerant manner.
One crucial issue of fault-tolerant quantum computing (FTQC) is reducing the overhead of …

Synchronizable hybrid subsystem codes

T Tansuwannont, A Nemec - arXiv preprint arXiv:2409.11312, 2024 - arxiv.org
Quantum synchronizable codes are quantum error correcting codes that can correct not only
Pauli errors but also errors in block synchronization. The code can be constructed from two …

Experiments with the four-dimensional surface code on a quantum charge-coupled device quantum computer

N Berthusen, J Dreiling, C Foltz, JP Gaebler… - Physical Review A, 2024 - APS
Single-shot quantum error correction has the potential to speed up quantum computations
by removing the need for multiple rounds of syndrome extraction to be fault-tolerant. By …