High-fidelity teleportation of a logical qubit using transversal gates and lattice surgery
- CQuIC Seminars
March 27, 2025 3:30 PM -
March 27, 2025 4:30 PM
PAIS 2540
- Host:
- Francisco Elohim Becerra
- Presenter:
- Ciaran Ryan-Anderson (Quantinuum)
Quantum state teleportation is commonly used in designs for large-scale quantum computers. Using Quantinuum’s H2 trapped-ion quantum processor, we demonstrate fault-tolerant state teleportation circuits for a quantum error correction code—specifically the Steane code. The circuits use up to 30 qubits at the physical level and employ real-time quantum error correction. We conducted experiments on several variations of logical teleportation circuits using both transversal gates and lattice surgery. We measured the logical process fidelity to be 0.975 ± 0.002 for the transversal teleportation implementation and 0.851 ± 0.009 for the lattice surgery teleportation implementation as well as 0.989 ± 0.002 for an implementation of Knill-style quantum error correction.
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