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Register a new userAlternative descriptions and bipartite compound quantum systems
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Added by
Giuseppe Scolarici dr
Publication date
2008
fields
Physics
and research's language is
English
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We analyze some features of alternative Hermitian and quasi-Hermitian quantum descriptions of simple and bipartite compound systems. We show that alternative descriptions of two interacting subsystems are possible if and only if the metric operator of the compound system can be obtained as tensor product of positive operators on component spaces. Some examples also show that such property could be strictly connected with symmetry properties of the non-Hermitian Hamiltonian.
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