arXiv:2508.10807v2 Announce Type: replace-cross Abstract: We present a native three-qubit entangling gate that exploits engineered interactions to realize control-control-target and control-target-target operations in a single coherent step. Unlike conventional decompositions into multiple two-qubit gates, our hybrid optimization approach selectively amplifies desired interactions while suppressing unwanted couplings, yielding robust performance across the computational subspace and beyond. The new gate can be classified as a cross-resonance gate. We show it can be utilized in several ways, fo
The continuous push for more efficient and robust quantum computing operations drives the innovation in gate design, leading to the development of novel multi-qubit gates like the Parity Cross-Resonance.
Advanced multi-qubit gates are critical for scaling quantum computers, enhancing error correction, and performing complex algorithms, accelerating the development of quantum advantage.
This gate offers a more efficient and robust method for entangling multiple qubits compared to current multi-gate decompositions, potentially reducing gate errors and increasing computational fidelity.
- · Quantum computing hardware developers
- · Quantum algorithm designers
- · Quantum error correction researchers
- · High-performance computing
- · Traditional two-qubit gate-centric quantum computing paradigms
Increased efficiency and reduced error rates in quantum circuits become possible with new multi-qubit gates.
This could accelerate the timeline for achieving fault-tolerant quantum computing and practical quantum applications.
Nations and companies with advanced quantum computing capabilities could gain significant strategic advantages in various scientific and industrial sectors.
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