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

• DOI: 10.1126/science.adp6016
• Publication Date: 2024-09-19T18:00:23Z
• Authors: C. Ryan-Anderson; N. C. Brown; C. H. Baldwin; J. M. Dreiling; C. Foltz; J. P. Gaebler; T. M. Gatterman; N. Hewitt; C. Holliman; C. V. Horst; J. Johansen; D. Lucchetti; T. Mengle; M. Matheny; Y. Matsuoka; K. Mayer; M. Mills; S. A. Moses; B. Neyenhuis; J. Pino; P. Siegfried; R. P. Stutz; J. Walker; D. Hayes
• Keywords: Teleportation; Quantum teleportation

Quantum state teleportation is commonly used in designs for large-scale quantum computers. Using Quantinuum's H2 trapped-ion processor, we demonstrate fault-tolerant circuits a error correction code-specifically the Steane code. The use up to 30 qubits at physical level and employ real-time correction. We conducted experiments on several variations of logical using both transversal gates lattice surgery. measured process fidelity be 0.975 ± 0.002 implementation 0.851 0.009 surgery as well 0.989 an Knill-style