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Homer nodded once more. Von Neumann's misreading of the Compton-Simon experiment and its fallout
R. N. Sen
In his book `Mathematical Foundations of Quantum Mechanics', von Neumann asserted the following: the Compton-Simon experiment showed that the state vector must collapse upon measur…
Little-used Mathematical Structures in Quantum Mechanics II. Representations of the CCR and Superseparability
R. N. Sen
It often goes unnoticed that, even for a finite number of degrees of freedom, the canonical commutation relations have many inequivalent irreducible unitary representations; the fr…
Little-used Mathematical Structures in Quantum Mechanics I. Galilei Invariance and the welcher Weg Problem
R. N. Sen
Results of the welcher Weg experiment of Duerr, Nonn and Rempe are explained by using ray representations of the Galilei group. The key idea is that the state of the incoming atom…
Can the Aharonov-Bohm effect be used to detect or refute superseparability?
R N Sen
The existence of inequivalent irreducible unitary representations of the CCR suggests that two identical charged bosons may, under suitable conditions, be unable to interact with e…
Physics and the measurement of continuous variables
R. N. Sen
Wigner had expressed the opinion that the impossibility of exact measurements of single operators like position operators rendered the notion of geometrical points somewhat dubious…