119 citations · 1.1k across the 47 of their papers we have counts for
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Expanding Hermitean Operators in a Basis of Projectors on Coherent Spin States
Stefan Weigert
The expectation values of a hermitean operator A in (2s+1)(2s+1) specific coherent states of a spin are known to determine the operator unambiguously. As shown here, (almost) any o…
Discrete Q- and P-symbols for spin s
Jean-Pierre Amiet, Stefan Weigert
Non-orthogonal bases of projectors on coherent states are introduced to expand hermitean operators acting on the Hilbert space of a spin s. It is shown that the expectation values…
A Discrete Phase-Space Calculus for Quantum Spins based on a Reconstruction Method using Coherent States
Stefan Weigert
To reconstruct a mixed or pure quantum state of a spin s is possible through coherent states: its density matrix is fixed by the probabilities to measure the value s along 4s(s+1)…
Coherent States and the Reconstruction of Pure Spin States
Jean-Pierre Amiet, Stefan Weigert
Coherent states provide an appealing method to reconstruct efficiently a pure state of a quantum mechanical spin s. A Stern-Gerlach apparatus is used to measure (4s+1) expectations…
Reconstructing the density matrix of a spin s through Stern-Gerlach measurements (II)
Jean-Pierre Amiet, Stefan Weigert
The density matrix of a spin s is fixed uniquely if the probabilities to obtain the value s upon measuring n.S are known for 4s(s+1) appropriately chosen directions n in space. The…