Qubit Tracker

Sycamore

Sycamore in the Qubit Tracker: every value read on the maker's own pages, with its day.

In inglese

Announced: 23 October 2019 — research.google, read 20 October 2026
Modality: Superconducting — quantumai.google, read 20 October 2026
Physical qubits: 54 qubits — research.google, read 20 October 2026
Logical qubits: Not confirmed: The Google pages reviewed do not print a demonstrated logical-qubit count with a code and paper.
Two-qubit gate fidelity: Not confirmed: The Google pages reviewed do not print a two-qubit gate fidelity as a percentage with a named statistic; “high-fidelity” is not a numeric value.
One-qubit gate fidelity: Not confirmed: The Google pages reviewed do not print a one-qubit gate fidelity as a percentage with a named statistic.
The maker’s own metric: Not confirmed: The pages reviewed do not print an eligible single-number system metric. The 200 seconds describes one benchmark run, not the machine; the datasheet’s repetition rate is printed as a range.
Access: Not confirmed: two readings disagree: cloud and research
Status: Not confirmed: two readings disagree: available and retired

Sources