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Howdy,

My understanding of QM is mostly mathematical (I have a basic understanding of the Hamiltonian of something like the particle in the box, and the rest of what I know is from Quantum Information Science, with very little physics knowledge), so please go easy on me :)

In reading about the QZE on Wikipedia, they talk about "quantum decay." My understanding is that it should apply equally well to a simple system like a qubit whose state vector is slowly rotating around C^2 (not that I have any idea what the physical realization of such a system might be): successive measurements on it should collapse it to its initial eigenstate, if frequent enough.

So, what is quantum "decay," and why do they use it exclusively in QZE examples?

Thanks!

Talisman

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# Quantum Zeno Effect and quantum decay

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