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 $sl(2)$ variational schemes for solving one class of quantum nonlinear models


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Hamiltonians of a wide-spread class of $G {inv}$-invariant nonlinear quantum models, including multiboson and frequency conversion ones, are expressed as non-linear functions of $sl(2)$ generators. It enables us to use standard variational schemes, based on $sl(2)$ generalized coherent states as trial functions, for solving both spectral and evolut

Author: V. P. Karassiov

Source: https://archive.org/







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