Heisenberg’s Uncertainty Principle Is Not Dead

One Thing Is Certain: Heisenberg’s Uncertainty Principle Is Not Dead: Scientific American.

Experimenters violate Heisenberg’s original version of the famous maxim, but confirm a newer, clearer formulation

In 2003 Masanao Ozawa of Nagoya University developed a new formulation of the error–disturbance uncertainty that Heisenberg aimed to express, but this time on much firmer footing. Derived mathematically from quantum measurement theory, the new formulation describes error and disturbance as well as fluctuations: ε(q)η(p) + σ(q)η(p) + σ(p)ε(q) ≥ h/4π.

Christian Schumacher

Dr. Christian Schumacher is the founder and managing director of StepChange Innovations GmbH, a technology development and consulting firm based in Germany. He has more than 20 years of experience in the chemical industry with global players such as Hoechst AG and DyStar Textilfarben GmbH as head of R&D, senior regional business manager Asia Pacific, head of e-commerce, head of marketing services, new product development manager and R&D chemist.

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