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Quantum Physics Stream: Recent submissions

  • APPLICATION OF PERTURBATION THEORY AND VARIATION METHOD TO CALCULATE LOWER ENERGY LEVELS OF HELIUM ATOM 
    Dawed, Hassen; Mengesha, (PhD) Elise (Haramaya university, 2019-01)
    This thesis presented how one found the energy and the wave function formalism of helium atom, for the lower energy level of general space dependent potential. Using perturbation and Varitional approximation method.The ...
  • ELECTROWEAK THEORY OF NEUTRINO-NUCLEON INTEORACTION: CASE OF NEUTRAL CURRENT PROCESSES 
    lambebo, Getachew; bekele, Gashaw Major Advisor (PhD) (Haramaya university, 2019-03)
    In this thesis, the main purpose was provided the electroweak description of elastic neutral current (NC) neutrino-nucleon scattering in the low energy region. The relativistic formalism has allowed us allows treating the ...
  • ELECTROWEAK THEORY OF ASSOCIATED STRANGENESS PRODUCTION VIA NEUTRINO-NUCLEON INTERACTION 
    goa alaye, Samuel; bekele, Gashaw Major Advisor (PhD) (Haramaya university, 2018-12)
    In this thesis, we present a fully relativistic description of associated production via NC neutrino-nucleon weak interaction. In the Lab frame where the target nucleon is at rest; the kinematics and dynamics of the ...
  • RELATIVISTIC DESCRIPTION OF ELECTRON-MUON SCATTERING REACTION 
    tesfaye, Mengistu; bekele, Gashaw Major Advisor (PhD) (Haramaya university, 2018-02)
    In this thesis, detailed derivations of the spin-average invariant amplitude and hence the differential cross-section for unpolarized electron-muon elastic scattering are made by using lowest-order Feynman diagrams. It ...
  • PPLICATION OF PERTURBATION THEORY TO SCHRÖDINGER EQUATION OF HYDROGEN ATOM (CASE OF FINITE-SIZE NUCLEUS) 
    kolbi, Urgesa; mengesha, Elias Major Advisor (PhD) (Haramaya university, 2017-08)
    Corrections in energy levels of hydrogen atom are calculated using first-order perturbation theory of hydrogen atom with finite size proton. The finite size proton is used by introducing the charge density of the proton. ...
  • SPECIFIC HEAT ESTIMATION FOR FERROMAGNETS WITHIN THE FRAMEWORK OF THE ISING MODEL 
    bekele, Dawit; bekele, Gashaw Major Advisor (PhD) (Haramaya university, 2017-08)
    This project presents the specific heat estimation for ferromagnetic material using the Ising model within the framework of the mean field approximation. First, a calculation is performed to obtain expression for partition ...
  • QUANTUM MECHANICAL STUDY OF THE INTERACTION OF RADIATION WITH MATTER 
    ahmedmuz adem, Anwar; mengesha, Elias Major Advisor (PhD) (Haramaya university, 2017-05)
    In this project an attempt has been made, first to present the quantum mechanical formalism of the interaction of radiation with matter, the photoionisation of an atom and the photodisintegration of a deuteron. For this ...
  • BERRY'S PHASE IN QUANTUM MECHANICS AND ITS APPLICATIONS 
    menza, Mebratu; mengesha, Elias Major Advisor (PhD) (Haramaya university, 2016-01)
    The aim of this project is to explain Aharonov-Bohm effect and to study the spin-half particle using Berry phase. If we consider Quantum Hamiltonian with external magnetic field that varies in time, we can solve the time ...
  • QUANTIZATION OF RELATIVISTIC DIRAC FIELD AND THE SPIN STATISTICS THEOREM 
    tasew, Gashaw; mengesha, Elias Major Advisor (PhD) (Haramaya university, 2016-01)
    In this project, attempt was made to develop the basic ideas of second quantization for a relativistic Dirac field using Lagrangian formalism in the four-dimensional space. In particular, concentration was made on the ...
  • QUANTUM EFFECTS IN THE DYNAMICS OF TRAPPED BOSE CONDENSED GASES 
    sulamo, Firdawok; bekele, Gashaw Major Advisor (PhD) (Haramaya university, 2016-01)
    In this project, quantum theory of a weakly interacting, dilute Bose gas is presented using the formalism of second quantization. First, a calculation is performed to obtain an expression for the Hamiltonian operator ...
  • QUANTUM THEORY OF THE THERMODYNAMICS OF AN IDEAL BOSE GAS 
    bezabih, Emawayish; bekele, Gashaw Major Advisor (PhD) (Haramaya university, 2016-01)
    In this project work, quantum theory of the thermodynamic properties of an ideal Bose gas is presented using quantum statistics. First a calculation is performed to obtain expressions for partition function and for ...

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