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	<title>multi-qubit gates &#8211; BIOENGINEER.ORG</title>
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		<title>Three-Qubit Quantum Gate Fidelity Falls Sharply on Real Superconducting Hardware</title>
		<link>https://bioengineer.org/three-qubit-quantum-gate-fidelity-falls-sharply-on-real-superconducting-hardware/</link>
		
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		<pubDate>Wed, 14 Oct 2026 11:29:51 +0000</pubDate>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[CCZ gate]]></category>
		<category><![CDATA[gate fidelity]]></category>
		<category><![CDATA[GHZ state]]></category>
		<category><![CDATA[IBM Quantum]]></category>
		<category><![CDATA[multi-qubit gates]]></category>
		<category><![CDATA[noisy simulation]]></category>
		<category><![CDATA[quantum benchmarking]]></category>
		<category><![CDATA[quantum computing]]></category>
		<category><![CDATA[quantum noise]]></category>
		<category><![CDATA[quantum state tomography]]></category>
		<category><![CDATA[Superconducting qubits]]></category>
		<category><![CDATA[W state]]></category>
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					<description><![CDATA[A new tomographic study of the three-qubit CCZ gate on IBM superconducting processors reveals that output fidelity depends heavily on both the input quantum state and the specific machine, ranging from over 99 percent in ideal simulation to as low as 50.3 percent on real hardware.]]></description>
		
		
		
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