AbstractThe energy states of shallow donor impurity in GaAs/AlGaAs quantum dot heterostructure with Gaussian potential have been calculated by the shifted 1/N expansion method. The effects of the impurity on the ground state energy and average statistical energy have been investigated. The present calculations show that the donor impurity modifies significantly the electron energy levels […]
AbstractRecently, some authors have considered thermodynamics of DNA and obtained its entropy. In parallel, they have shown that phonons which are agents of temperature and entropy have direct effects on the electrons. Motivated by these researches, we obtain the relation between entropy and electronic properties of DNA like its radiated waves. We examine the model […]
AbstractConstruction of the reduced spin and helicity density matrix for systems of two and three particles are described by a wave packet with sharp and Gaussian momentum distribution. The entropy for the spin and helicity part of the systems is calculated from the viewpoint of moving observers.