مشخصات پژوهش

Nonlinear coherent states or f -coherent states are one of the important class of quantum states of light attached to the f -deformed oscillators. They have been introduced in a pioneering work by Manko et al. and have been realized physically as the stationary states of the centre of mass motion of a trapped ion by de Matos Filho et al. To gain insight into the effectiveness of these states in quantum information theory, we introduce qutrit-like states as a result of two-mode superposition coherent states based on two f -coherent states |α, f i with a specific selection of the nonlinearity function f (n). The control role of the involved parameters, especially the nonlinearity function on the entanglement and statistical properties of the system state is investigated. The generalized I -concurrence measure has been applied to quantify the entanglement of these states and the condition in which quantum entanglement can be enhanced and maximized has been identified. We show that depending on the chosen nonlinearity function, one can observe different nonclassical effects. These trends are also compared with those obtained for the qubitlike superposition of f -coherent states.