Essays about: "feynman"

Showing result 21 - 25 of 27 essays containing the word feynman.

  1. 21. Matrix Integrals : Calculating Matrix Integrals Using Feynman Diagrams

    University essay from Uppsala universitet/Teoretisk fysik

    Author : Adam Friberg; [2014]
    Keywords : fat graph; feynman diagram; matrix integral; perturbative expansion; wick s theorem;

    Abstract : In this project, we examine how integration over matrices is performed. We investigate and develop a method for calculating matrix integrals over the set of real square matrices. READ MORE

  3. 22. Saturation Intensity of Rare Earth Ions Doped Crystals

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Atomfysik

    Author : Martynas Solovejus; [2014]
    Keywords : saturation intensity; spectral broadening; spectral effects; rare earths; rare-earths; cerium; Ce; Ce:YSO; Pr:YSO; RE:YSO; quantum information; quantum computing; Physics and Astronomy;

    Abstract : The thesis is primarily concerned with rare earth ions doped into yttrium ortho silicate crystals, RE:YSO. It is considered to be an ambitious platform for the development of quantum computing schemes. One such scheme requires the detection of single cerium ions. READ MORE

  4. 23. Diagrammatic Representations in Quantum Theories

    University essay from Teoretisk fysik

    Author : Jacob Stenberg; [2013]
    Keywords : Amplitudes; Feynman; diagrams; quantum; field; mechanics;

    Abstract : Starting from a mathematical basis where one analyses and developing different techniques in how to solve and represent different kinds of integrals with diagrams. Representing the integrals as n-valent vertices and introducing propagators is a great tool that helps with the book-keeping of the solutions and will sometimes do the calculations redundant. READ MORE

  5. 24. Triangle Loop in Scalar Decay and Cutting Rules

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Hazhar Ghaderi; [2013]
    Keywords : Cutkosky cutting rules; Feynman triangle loop diagram; two-fold Dirac delta functions; double Dirac delta functions; Dirac delta distribution; delta distribution;

    Abstract : In this report we will calculate the amplitude for a scalar-to-scalars (φ3  φ2φ2) decay which involves a triangle loop. We compute the real and imaginary part of the amplitude separately and will argue that this is much more straightforward and practical in this case rather than having to deal with or worry about branch cuts of logarithms. READ MORE

  6. 25. Three solutions to the two-body problem

    University essay from Institutionen för matematik (MA)

    Author : Frida Gleisner; [2013]
    Keywords : two-body problem; Newtonian mechanics; classical geometry; Feynman s lost lecture;

    Abstract : The two-body problem consists of determining the motion of two gravitationally interacting bodies with given masses and initial velocities. The problem was first solved by Isaac Newton in 1687 using geometric arguments. READ MORE