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Purifications and Fidelity | Understanding Quantum Information & Computation | Lesson 12

Name: Purifications and Fidelity | Understanding Quantum Information & Computation | Lesson 12
Uploaded: 2024-09-26
Description: How similar are two quantum states? How can a mixed state be understood as part of a larger system? John Watrous explores purification and fidelity in a mathematical course lesson. Familiarity with the preceding state-and-channel material will make this a more useful watch than approaching it as a standalone introduction.

Original upload Sep 26, 2024

Rows of patterned Fugaku supercomputer cabinets at the RIKEN Center for Computational Science

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Fugaku at RIKEN in Kobe. Classical supercomputing context for computational research, not a quantum processor or a video frame.

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How similar are two quantum states? How can a mixed state be understood as part of a larger system? John Watrous explores purification and fidelity in a mathematical course lesson. Familiarity with the preceding state-and-channel material will make this a more useful watch than approaching it as a standalone introduction.

Video by Qiskit. Added to QubitWire September 29, 2026.

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