Constant-time magic state distillation

Abstract: We present numerical simulation results for the 7-to-1 and 15-to-1 state distillation circuits, constructed using transversal CNOTs acting on multiple surface code patches. The distillation circuits are decoded iteratively using the method outlined in [arXiv:2407.20976]. We show that, with a re-configurable qubit architecture, we can perform fast, $\mathcal{O}(1)$ code cycles magic state distillation. We confirm the error suppression ability of both distillation circuits, from input error rate $p\rightarrow \mathcal{O}(p^{3})$ under circuit-level noise.