Decomposition of a Quantum System Into Subsystems in Finite Quantum Mechanics

04/24/2021

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by   Vladimir V. Kornyak, et al.

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Any Hilbert space with composite dimension can be factorized into a tensor product of smaller Hilbert spaces. This allows to decompose a quantum system into subsystems. We propose a simple tractable model for a constructive study of decompositions of quantum systems.