84 citations · 209 across the 6 of their papers we have counts for
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hep-th1994
Observation and superselection in quantum mechanics
N. P. Landsman
We attempt to clarify the main conceptual issues in approaches to `objectification' or `measurement' in quantum mechanics which are based on superselection rules. Such approaches v…
hep-th1994
Classical and quantum representation theory
N. P. Landsman
These notes present an introduction to an analytic version of deformation quantization. The central point is to study algebras of physical observables and their irreducible represe…
hep-th1994
The infinite unitary group, Howe dual pairs, and the quantization of constrained systems
N. P. Landsman
The irreducible unitary representations of the Banach Lie group (which is the norm-closure of the inductive limit ) of unitary operators on a separable Hilbe…