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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...
We study numerically the spectrum and eigenfunctions of the quantum Neumann model, illustrating some general properties of a non-trivial integrable model.
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...
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.
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...
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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