Juq-373 //free\\ Jun 2026

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| Parameter | Specification | Remarks | |-----------|---------------|---------| | | Fixed‑frequency transmon qubits (Nb/Al‑Ox/Al) | Low‑anharmonicity design reduces cross‑talk | | Qubit Count | 373 physical qubits (hence the “373” suffix) | Arranged in a 19×19 lattice with 5 spare rows for error‑correction ancilla | | Gate Fidelity | Single‑qubit: 99.96 % Two‑qubit (CZ): 99.68 % | Measured via randomized benchmarking | | Coherence Times | T₁ ≈ 115 µs, T₂ ≈ 95 µs (median) | Cryogenic environment at 10 mK | | Error‑Correction Scheme | Surface‑code with distance‑d = 7 logical qubits | Supports logical error rates < 10⁻⁶ per operation | | Classical Co‑processor | 64‑core ARM Cortex‑A78 (3 GHz) + 256 GB DDR5 | Handles control flow, state‑vector simulation, and I/O | | Interconnect | Cryogenic 100 Gbps optical link (CMOS‑compatible) | Low‑latency quantum‑classical data exchange | | Power Consumption | < 2 kW (including cryocooler) | Optimized for data‑center deployment | | Form Factor | 19‑inch rack‑mount, 2 U height | Fits standard quantum‑hardware chassis | JUQ-373