Abstract
We present an explicit construction of coherent states for an arbitrary irreducible representation of the unitary symplectic group USp(4). Three different families of coherent states are obtained, corresponding to the subgroups U(1) × U(1), U(2) and SU(2) × SU(2). The symplectic structure on the manifold of coherent states is obtained, and canonical coordinates are used to express the classical limit of quantum observables. One of the families is seen to provide a trivial classical limit.
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