Infleqtion demonstrates logical architecture on 114-qubit neutral-atom QPU with named error-reduction metrics
In arXiv:2509.13247 (submitted 2025-09-16), Infleqtion researchers (first author Rich Rines) demonstrated a logical neutral-atom architecture on the company's 114-qubit Sqale QPU uniting atom motion with in-place entanglement. Reported results include up to a 2x reduction in total variation distance with loss correction and leakage detection on a precompiled Shor's-algorithm variant, 2-4x lower error for constant-depth logical CX ladders at 8 and 12 logical qubits, and an 8x logical-versus-physical improvement preparing the [[16,4,4]] code.
A commercial-affiliation paper with named-metric error-reduction benchmarks on a 114-qubit device qualifies under the academic filter and is a meaningful neutral-atom logical-qubit result, though as a preprint without industry-wide implications it sits at the sub-domain-relevant level.
Demonstrating logical-over-physical gains on its own hardware strengthens Infleqtion's technical narrative as it heads to public markets via the Churchill Capital X SPAC announced the same month.