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In a recent paper (Phys. Lett. A 331 (2004) 366) we have introduced a new kind of phase state. Here we investigate properties of superposition of these states and their generation for trapped fields inside a high- Q cavity and for running fields.
Dispersion properties of low-frequency (in comparison with the ion gyrofrequency) compressional electromagnetic waves in a nonuniform dusty magnetoplasma are presented. By using the plasma hydrodynamic equations together with the Faraday and Ampère laws, we derive a new dispersion relation. The...
This Letter deals with the synchronization of a class of uncertain chaotic systems in the drive-response framework. A robust adaptive observer based response system is designed to synchronize a given chaotic system with unknown parameters and external disturbances. Lyapunov stability ensures the...
The dispersion relation for longitudinal oscillations in a weakly magnetized Maxwellian plasma is evaluated via a novel asymptotic method and reduces to the Bohm–Gross dispersion relation in the field-free limit. A proper treatment of the Stokes phenomenon reveals a factor of 2 missing in the...
The up-conversion properties of Tm 3+ /Yb 3+ codoped oxyfluoride glass-ceramics under 980 nm excitation were investigated. Intense blue up-conversion luminescence due to the Tm 3+ : 1 G 4 → 3 H 6 transition was observed in the glass-ceramics. The intensity of the blue up-conversion luminescence...
A criterion based on the intervalised network parameters for the global robust stability of Hopfield-type neural networks with delay is presented. The criterion is compared with an earlier criterion.
We study numerically the spectrum and eigenfunctions of the quantum Neumann model, illustrating some general properties of a non-trivial integrable model.
We investigate the optical bistability in a multilayered structure containing alternating left-handed materials (LHM) and conventional (right-handed) materials. Numerical calculations show that optical bistability can appear in both Bragg and zero- 〈 n 〉 gaps inside the structure created by...
The exact solutions of two-dimensional Schrödinger equation with the position-dependent mass for a hard-core potential are obtained. The eigenvalues related to the position-dependent masses μ 1 and μ 2 , the potential well depth V 0 and the effective range r 0 can be calculated by the boundary...
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