in this paper may be used as a design t.ool to predict the general pattern behavior of multimode slow wave spiral antennas. where .Z<jim is a generalized self-or mut.ual impedance defmed between two current functions f i t (~ <) and fp(zj). Solving (2) with rmpect to [. J i t J , we express them as Let Qj(9) represent the radiation pattern obtained when a unit voltage is applied to the jth inpu...

Diatomic polar molecules are one of the most promising platforms quantum computing due to their rich internal states and large electric dipole moments. Here, we propose entangling rotational adjacent via a strong dipole-dipole interaction. The splitting 1.27 kHz between two entangled is predicted for MgF in an optical tweezer array. resolution can be achieved magic potential where have same tra...

An optimal design of a linear antenna array is presented. The antenna array is optimized under the restriction of uniform excitation distribution using a particle swarm optimization based method. The optimization procedure is applied under the requirements for the minimum possible side lobe level and the maximum possible power gain at the desired direction. The method has been applied to collin...

We propose a scheme for quantum logic with neutral atoms stored in an array of holographic dipole traps where the positions of the atoms can be rearranged by using holographic optical tweezers. In particular, this allows for the transport of two atoms to the same well where an external control field is used to perform gate operations via the molecular interaction between the atoms. We show that...

The high spin structure of 108Ag nucleus has been studied using the reaction 11B + 100Mo at 39 MeV with Indian National Gamma Array (INGA) at TIFR-BARC accelerator facility. From the twoand higher-fold coincidence analysis of the emitted γ-rays, the level structure of the nucleus is built, with addition of around ∼ 60 new transitions. A new positive parity dipole band has been observed and sign...

We present the numerical parametric study of a reconfigurable plasma antenna array (PAA) composed of a metallic half-wavelength dipole and a set of cylindrical plasma discharges arranged in a planar square lattice. Our results, obtained with the linear embedding via Green’s operators (LEGO) method, indicate that beam-forming and beam-steering functionality can be achieved and controlled by appr...

An infrared perfect absorber based on a gold nanowire metamaterial cavities array on a gold ground plane is designed. The metamaterial made of gold nanowires embedded in an alumina host exhibits an effective permittivity with strong anisotropy, which supports cavity resonant modes of both electric dipole and magnetic dipole. The impedance of the cavity modes matches the incident plane wave in f...

In this paper, circular and hexagonal array geometries for smart antenna applications are compared. Uniform circular (UCA) and hexagonal arrays (UHA) with 18 half-wave dipole elements are examined; also planar (2 concentric rings of radiators) uniform circular (PUCA) and hexagonal arrays (PUHA) are considered. The effect of rotating the outer ring of the PUCA is studied. In our analysis, the me...

A small dielectric sphere is buried within the lower half of a two half-space medium and illuminated from the upper one by a dipole array. The Multi-Static Response Matrix is computed either by the Coupled Dipole Method or by an asymptotic formulation taking into account the coupling between the sphere and the interface. Comparisons between field data and between images of the inclusion are dis...

This paper describes the characteristics of a software developed on MatLab Scripts to obtain the radiation patterns of linear antenna arrays using dipoles as the elements. The software includes, among several other options: the analysis and design of arrays with progressive phase, arrays with non uniform amplitude excitation and arrays with non uniform separation. Some special attributes of the...