Dynamics at high momentum and the vertex function of spinor electrodynamics

the relationship between academic self-concept and academic achievement in english and general subjects of the students of high school

according to research, academic self-concept and academic achievement are mutually interdependent. in the present study, the aim was to determine the relationship between the academic self-concept and the academic achievement of students in english as a foreign language and general subjects. the participants were 320 students studying in 4th grade of high school in three cities of noor, nowshah...

Dynamics of quantum liquids at high momentum.

The dynamic form factor S(Q, co) in liquid He and He is evaluated in the wave-vector transfer o ] range 3&Q &15 A . The input is the pair interatomic potential, developed by Aziz et al. The S(Q, to) is calculated within the random-phase approximation (RPA) which becomes valid when RQ is much larger than the average momentum in the liquid. A T-matrix approximation represents the interaction appe...

the study of bright and surface discrete cavity solitons dynamics in saturable nonlinear media

امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...

Quantum Electrodynamics of Casimir Momentum: Momentum of the Quantum Vacuum?

QUANTUM ELECTRODYNAMICS AT INFINITE MOMENTUM: SCATTERING FROM AN EXTERNAL FIELDt

Using a formulation of quantum electrodynamics in the infinite momentum frame, we develop a theory to describe the scattering of energetic electrons or >” photons off an external field. A physical picture emerges which proves to be a realization of Feymnan’s lfparton” ideas. In this picture the incoming electron is composed of bare constituents (the quanta of the Schroedinger fields) which, at ...