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University of Pennsylvania researchers have accelerated solid-state quantum operations by converting inherent crosstalk into parallel conditional gates, achieving a tenfold speedup in generating four-qubit entangled states at room temperature. This method significantly reduces gate latency and offers a scalable template for error correction protocols across various diamond color centers and silicon carbide registers. The breakthrough advances the practicality of ambient-temperature quantum hardware by operating near physical interaction limits while maintaining high fidelity.

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University of Pennsylvania Demonstrates Single-Gate Parallel Entanglement on Room-Temperature Diamond Quantum Register

Quantum Computing ReportSeptember 19, 20262 min read

University of Pennsylvania researchers have achieved a breakthrough in quantum computing by demonstrating single-gate, parallelized multipartite entanglement on a room-temperature diamond quantum register. They successfully generated a four-qubit Greenberger–Horne–Zeilinger (GHZ) state in just 14.8 microseconds, a tenfold speedup over traditional methods, with significantly improved fidelity. This new approach, detailed in Nature Nanotechnology, converts inherent crosstalk into parallel conditional gates, offering a scalable template for future quantum technologies. The post University of Pennsylvania Demonstrates Single-Gate Parallel Entanglement on Room-Temperature Diamond Quantum Register appeared first on Quantum Computing Report.

Entangling-gate fidelities. Quantum researchers at the University of Pennsylvania have demonstrated single-gate, parallelized multipartite entanglement on a solid-state quantum register operating under ambient room-temperature conditions. Detailed in a…

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