Department of Physics & Materials Science
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Acoustical properties of compressed earth blocks: Effect of compaction pressure, water hyacinth ash and lime
(Elsevier, 2023)This study assessed the potential use of a mixture of lime and water hyacinth ash (WHA) as binders in fabrication of cylindrical compressed earth blocks (CEBs) with good acoustic absorption properties for building and ... 
A comparison of the Laplace and the alternative multipole expansion series for the Coulomb potential
(Research Gate, 2023)Multipole expansion is a powerful technique used in manybody physics to solve dynamical problems involving correlated interactions between constituent particles. The Laplace multipole expansion series of the Coulomb ... 
AntiJaynesCummings interaction of a twolevel atom with squeezed light: A comparison with the JaynesCummings interaction
(Maseno University, 2022)We considered the antiJaynesCummings (AJC) interaction of a twolevel atom in an initial ground state interacting with a field mode in an initial squeezed coherent state at arbitrary values of squeeze parameter r and ... 
On atomic state purity operator, degree of state purity and concurrence in the JC and antiJC models
(Maseno University, 2020)The state of an atom in a bipartite qubit, JaynesCummings (JC) or antiJaynesCummings (aJC) interaction is described by a reduced density operator. The purity of the state has been measured by taking the trace of the ... 
Patient Characteristics from an Emergency Care Center in Rural Western Kenya
(Elsevier, 2019)Emergency care is a neglected area of focus in many low and middleincome countries. There is a paucity of research on types and frequencies of acute illnesses and injuries in lowresource settings. 
Acoustics of fractal porous material and fractional calculus
(MDPI, 2021)In this paper, we present a fractal (selfsimilar) model of acoustic propagation in a porous material with a rigid structure. The fractal medium is modeled as a continuous medium of noninteger spatial dimension. The basic ... 
Transient Propagation of Longitudinal and Transverse Waves in Cancellous Bone: Application of Biot Theory and Fractional Calculus
(MDPI, 2022)In this paper, the influence of the transverse wave on sound propagation in a porous medium with a flexible structure is considered. The study is carried out in the time domain using the modified Biot theory obtained by ... 
Flow of a SelfSimilar NonNewtonian Fluid Using Fractal Dimensions
(MDPI, 2022)In this paper, the study of the fully developed flow of a selfsimilar (fractal) powerlaw fluid is presented. The rheological way of behaving of the fluid is modeled utilizing the Ostwald–de Waele relationship (covering ... 
On atomic state purity operator, degree of state purity and concurrence in the JC and antiJC models
(arxiv.org, 2022)The state of an atom in a bipartite qubit, JaynesCummings (JC) or antiJaynesCummings (aJC) interaction is described by a reduced density operator. The purity of the state has been measured by taking the trace of the ... 
Structural and Optical Probe into Rare Earth Doped ZnO for Spectral Conversion in Solar Cells
(Jenny Stanford Publishing, 2022)This chapter examines the relationship between structure and optoelectronic properties of rare earth doped Zinc oxide (ZnO) thin films fabricated by RF magnetron sputtering for photovoltaic applications. A doped ZnO layer ... 
Anomalous photovoltaic behavior under illumination of γIn2Se3 nanostructures used as hole transport layer in organic solar cell
(Pergamon, 2022)Indium selenide is currently receiving tremendous attention in device application and studies related to two dimensional nanostructured technologies. Nonlayered γIn2Se3, which is a stable phase at room temperature, was ... 
Accurate Abinitio calculation of elastic constants of anisotropic binary alloys: A case of Fe–Al
(Solid State Communications, 2022)The final formed phases of alloys are functions of the chemical compositions of the mixture. The overall mechanical moduli of the alloy are also functions of the phases present. Most of the previous computed elastic constants ... 
TemperatureDependent Elastic Constants of Substrates for Manufacture of Mems Devices
(Kabarak university, 2022)We present a comparative computational study of temperaturedependent elastic constants of silicon (Si), silicon carbide (SiC) and diamond as substrates that are commonly used in the manufacture of MicroElectromechanical ... 
Rabi oscillations, entanglement and teleportation in the antiJaynesCummings model
(Cornell University, 2021)This paper provides a scheme for generating maximally entangled qubit states in the antiJaynesCummings interaction mechanism, so called entangled antipolariton qubit states. We demonstrate that in an initial vacuumfield, ... 
heoretical Realization of a Two Qubit Quantum ControlledNOT Logic Gate and a Single Qubit Quantum Hadamard Logic Gate in the AntiJaynesCummings Mode
(ResearchGate, 2021)The interactive and cumulative effect of temperature and rainfall on land cover change is a priority at global, regional and local scale. This study examined changes in six land cover categories (forestland, grasslands, ... 
Energy Source and Technology Options for Kenya: Towards Direct Conversion of Solar Energy to Mechanical Work
(2017)Sunlight though not heat, has inherent potential for direct conversion to mechanical work, just as heat does. The Physics pitching the possibility of direct conversion of nearly the entire sunlight received by a system ... 
Ab initio study of elastic properties of orthorhombic cadmium stannate as a substrate for the manufacture of MEMS devices
(Science Direct, 2021)The elastic properties of the orthorhombic cadmium stannate (Cd2SnO4) were investigated using density functional theory, applying both energystrain relationship (which is found in the literature) and stressstrain ... 
Rabi oscillations, entanglement and teleportation in the antiJaynesCummings model
(Cornell University, 2021)This paper provides a scheme for generating maximally entangled qubit states in the antiJaynesCummings interaction mechanism, so called entangled antipolariton qubit states. We demonstrate that in an initial vacuumfield, ... 
Theoretical realization of a two qubit quantum controllednot logic gate and a single qubit Hadamard logic gate in the antiJaynesCummings model
(Cornell University, 2021)We provide a theoretical scheme for realizing a Hadamard and a quantum controlledNOT logic gates operations in the antiJaynesCummings interaction process. Standard Hadamard operation for a specified initial atomic state ... 
Conserved excitation number and U(1)symmetry operators for the antirotating (antiJaynesCummings) term of the Rabi Hamiltonian
(Cornell University, 2021)In this article we apply algebraic operator ordering property of the basic atom and field operators to construct and prove conservation of the excitation number operator of the antirotating (antiJaynesCummings) component ...