High-fidelity teleportation of a logical qubit using transversal gates and lattice surgery

C Ryan-Anderson, NC Brown, CH Baldwin, JM Dreiling… - Science, 2024 - science.org
Quantum state teleportation is commonly used in designs for large-scale quantum
computers. Using Quantinuum's H2 trapped-ion quantum processor, we demonstrate fault …

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 …

Automated Synthesis of Fault-Tolerant State Preparation Circuits for Quantum Error Correction Codes

T Peham, L Schmid, L Berent, M Müller… - arXiv preprint arXiv …, 2024 - arxiv.org
A central ingredient in fault-tolerant quantum algorithms is the initialization of a logical state
for a given quantum error-correcting code from a set of noisy qubits. A scheme that has …

Dark spin-cats as biased qubits

A Kruckenhauser, M Yuan, H Zheng, M Mamaev… - arXiv preprint arXiv …, 2024 - arxiv.org
We present a biased atomic qubit, universally implementable across all atomic platforms,
encoded as aspin-cat'within ground state Zeeman levels. The key characteristic of our …