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- Ethiopian Space Science and Technology InstituteET10 papers
- Instituto de Astrofísica de AndalucíaES7 papers
- Max Planck Institute for Solar System ResearchDE7 papers
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- Kotebe University of EducationET4 papers
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6 papers · 1 filter
The effect of Non-centrosymmetricity on optical and electronic properties of cubic BaHfO perovskite structure
Tewodros Eyob, Kenate Nemera, Lemi Demeyu
The effect of Non-centrosymmetricity on electronic and optical properties has been investigated using grid based projector augmented wave method code GPAW. The calculation of band…
Squeezing in Both the Plus and Minus Quadratures with the Uncertainty Relation Perfectly Holding
Ayana Yihunie, Fesseha Kassahun
We have considered a cavity mode driven by coherent light and interacting with a three-level atom available in an open cavity coupled to a vacuum reservoir. We have carried out our…
On the Existence of Solution of the Boundary-Domain Integral Equation System derived from the 2D Dirichlet Problem for the Diffusion Equation with Variable Coefficient
C. F. Portillo, Z. W. Woldemicheal
A system of boundary-domain integral equations is derived from the bidimensional Dirichlet problem for the diffusion equation with variable coefficient using the novel parametrix f…
Topological and dynamical properties of composition operators
Tesfa Mengestie, Werkaferahu Seyoum
We study various properties of composition operators acting between generalized Fock spaces and with weight functions grow faster than the c…
Analytic approach to calculations of mass spectra and decay constants of heavy-light quarkonia in the framework of Bethe-Salpeter equation
Eshete Gebrehana, Shashank Bhatnagar, Hluf Negash
This work is an extension of the work in \cite{bhatnagar18} to ground and excited states of , and of heavy-light ($c\overline{u}, c\overline{s}, b\overline…
Interaction of Subharmonic Light Modes with Three-Level Atom
Merid Tufa, Fesseha Kassahun
We have considered the interaction of the subharmonic light modes with a three-level atom. We have found that the effect of this interaction is to decrease the quadrature squeezing…