Qarakal Quantum Unveils "Pangaea" Modular Architecture to Cut Qubit Overhead by 10X - Quantum Computing Report

Israeli quantum startup Qarakal Quantum Ltd. has officially launched Pangaea, a modular, three-dimensional superconducting quantum computing architecture engineered to reduce the physical qubit requirements of fault-tolerant systems by an order of magnitude. Published in an arXiv pre-print titled “The Pangaea Architecture: Fault-Tolerant Heterogeneous Topological Codes via a Quantum Bus,” the design resolves the long-standing routing bottleneck of two-dimensional lattice surgery by introducing an IP-protected quantum bus to mediate logical operations between physically separated 2D topological code patches. Rather than relying on direct physical adjacency, Pangaea uses an auxiliary gauge-code strip as its quantum bus. The bus reconstructs multi-qubit joint Pauli operators [...]

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