Foundations · Michael Nielsen

The Hadamard gate | Quantum computing for the determined

Name: The Hadamard gate | Quantum computing for the determined
Uploaded: 2010-11-22
Description: Meet a gate that appears throughout quantum circuits. Michael Nielsen's lesson introduces the Hadamard gate for viewers building a working command of qubit notation. Watch how the operation is described mathematically, then compare it with other single-qubit gates. The lesson is foundational, not a claim about a new processor.

Original upload Nov 22, 2010

Engineers installing an IBM Quantum System One cryogenic assembly at Fraunhofer

Context photo · Holger Muench / IBM · CC BY 2.0

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Engineers install IBM Quantum System One at Fraunhofer. Archival quantum-computing context, not a video frame or the apparatus of another study.

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Meet a gate that appears throughout quantum circuits. Michael Nielsen's lesson introduces the Hadamard gate for viewers building a working command of qubit notation. Watch how the operation is described mathematically, then compare it with other single-qubit gates. The lesson is foundational, not a claim about a new processor.

Video by Michael Nielsen. Added to QubitWire September 29, 2026.

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