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19962019
most citedQuantum states and generalized observables: a simple proof of Gleason's theorem

302 citations · 2.1k across the 45 of their papers we have counts for

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quant-ph2001★ 40 cited

Are Number and Phase Complementary Observables?

Paul Busch, Pekka Lahti, Juha-Pekka Pellonpaa +1

We study various ways of characterising the quantum optical number and phase as complementary observables.

quant-ph2001★ 3 cited

Just How Final are Today's Quantum Structures?

Paul Busch

I present a selection of conceptual and mathematical problems in the foundations of modern physics as they derive from the title question. Contribution to a panel session, "Springe…