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quant-ph2004
Moment operators of the Cartesian margins of the phase space observables
J. Kiukas, P. Lahti, K. Ylinen
The theory of operator integrals is used to determine the moment operators of the Cartesian margins of the phase space observables generated by the mixtures of the number states. T…
quant-ph2004
Notes on coarse grainings and functions of observables
A. Dvurecenskij, P. Lahti, S. Pulmannova +1
Using the Naimark dilation theory we investigate the question under what conditions an observable which is a coarse graining of another observable is a function of it. To this end,…