Physics – Mathematical Physics
Scientific paper
2005-04-24
NUOVO CIMENTO Vol. 119 B, N. 10 (2004)
Physics
Mathematical Physics
Scientific paper
We have constructed the quasi-exactly-solvable two-mode bosonic realizations of su(2) and su(1, 1) algebra. We derive the relations leading to the conditions for quasi-exact solvability of two-boson Hamiltonians by determining a general procedure which maps the Schwinger representations of the su(2) and su(1, 1) algebras to the Gelfand-Dyson representations, respectively. This mapping allows us to study nonlinear quantum-optical systems in the framework of quasi-exact solvability. Our approach also leads to a simple construction of special functions of two variables which are the most appropriate functions to study quasi-probabilities in quantum optics.
Koc Ramazan
Koca Mehmet
Tutunculer Hayriye
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