Browsing Department of Physics by Author "Nishnianidze, D. N"

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Exactly solvable nonseparable and nondiagonalizable two-dimensional model with quadratic complex interaction

Cannata, Francesco; Loffe, M.V; Nishnianidze, D. N; Mustafa, Omar (American Institute of Physics, 2010)

We study a quantum model with nonisotropic two-dimensional oscillator potential but with additional quadratic interaction x1x2x1x2 with imaginary coupling constant. It is shown that for a specific connection between coupling ...