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World Journal of Condensed Matter Physics (WJCMP) covers the whole of condensed matter physics including soft condensed matter and nanostructures. Papers may report experimental, theoretical and simulation studies. Note that papers must contain fundamental condensed matter science: papers reporting methods of material…
Amadou Diao, Ndeye Thiam, Martial Zoungrana, Gokhan Sahin, Mor Ndiaye, Grégoire Sissoko
In this paper, a theory on the determination of the diffusion coefficient of excess minority carriers in the base of a silicon solar cell is presented. The diffusion coefficient expression has been established and is related to both frequency modulation and a…
Antonios Gonis
It is established that for finite number of electrons, N < ∞ , and in the limit T = 0 , the line of reasoning leading to the proof of Janak’s theorem is flawed, based on the incorrect treatment of a mixed state as a pure state. The derivative discontinuity at…
Mohamed S. El Naschie
The present note is concerned with two connected and highly important fundamental questions of physics and cosmology, namely if E8E8 Lie symmetry group describes the universe and where cosmic dark energy comes from. Furthermore, we reason following Wheeler, H…
Maryam Khademi Dehkordi
Transport coefficients of superfluid dipolar Fermi gas are calculated by using the Boltzmann equation approach. The interaction between Bogoliubov-Bogoliubov quasiparticles in the collision integral is considered in binary process. The shear viscosities n xz…
Yosyp Schwab, Harkirat S. Mann, Brian N. Lang, Giovanna Scarel
Upon formation, radiative polaritons in thin oxide films or crystals emit radiation to the surrounding space. This radiation is confined in a small range of the microwave to far-infrared region of the electromagnetic spectrum, independently of the oxide chemi…
Mesfin A. Afrassa, Poran Singh
The interaction of superconductivity and magnetism is studied in iron based superconductor using the Hamiltonian consisting of the itinerant electrons, localized electrons moment, and s-f interaction. Using Greens function technique and equation of motion met…
M. Khademi Dehkordi
We compute the shear viscosity of superfluid Bose and Fermi gases on the base of Boltzmann equation and rela xation times. We show that, in the low temperature limit, the shear viscosities of Bose and Fermi gases are pro portional to T -1 e vp 0 /T and T -4 ,…
G. P. Malik, Usha Malik
Employing the Geilikman-Kresin (GK) theory, we address the experimental data obtained by Bauer et al ., and by Schneider et al ., on the thermal conductivity ( κ ) of superconducting MgB 2 . The two gaps of this compound have qualitatively been understood via…
Evgeny E. Perepelkin, Natalia G. Inozemtseva, Alex A. Zhavoronkov
The evolution of the charge density distribution function is simulated for both the case of a uniformly charged sphere with zero initial conditions and for the case of a non-uniform charged sphere. For the case of a uniformly charged sphere the comparison of…
Igor Tralle, Klaudiusz Majchrowski
In the work, we propose an approach to “ smart design ” of heterostructures (quantum wells and superlattices) based on the combination of Inverse Scattering Problem Method and the direct solution of the eigenvalue prob lem for the Schr ? dinger equation with…
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World Journal of Condensed Matter Physics (WJCMP) covers the whole of condensed matter physics including soft condensed matter and nanostructures. Papers may report experimental, theoretical and simulation studies. Note that papers must contain fundamental condensed matter science: papers reporting methods of material… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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