Abstract
Spin states are studied in the tomographic-probability representation. The standard probability distribution of spin projection onto a direction in space is used instead of the spinor or the density matrix to identify the quantum state. The Shannon entropy and information are associated with the spin tomographic probability. A short review of the probability-theory notions is presented. Analysis of tomographic entropy and tomographic information for the Werner state is considered. The probability representation is used to describe a spin-3/2 particle and two qubits. The connection of tomographic entropy with the von Neumann entropy is discussed.
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Chernega, V.N., Man’ko, O.V., Man’ko, V.I. et al. Tomographic characteristics of spin states. J Russ Laser Res 27, 132–166 (2006). https://doi.org/10.1007/s10946-006-0006-z
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DOI: https://doi.org/10.1007/s10946-006-0006-z