• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
The beauty of string theory - Institute for Advanced Study
The beauty of string theory - Institute for Advanced Study

... space, it also can vibrate in the new fermionic dimensions. This new kind of vibration produces a cousin or “superpartner” for every elementary particle that has the same electric charge but differs in other properties such as spin. Supersymmetric theories make detailed predictions about how superpa ...
The nonlinearity of single photon
The nonlinearity of single photon

... interest to scientists and engineers. In photonics, such processes are versatile assets that can be exploited to perform a variety of tasks, ranging from all-optical switching to precision metrology. In quantum information science, the ability to operate nonlinear processes at the fewphoton-level is ...
Taylor`s experiment (1909)
Taylor`s experiment (1909)

... if such a correlation existed, a major revision of fundamental concepts in quantum mechanics would be required (Ádám, Jánossy & Varga, 1955; Brannen & Ferguson, ...
Electricity Unit Assignment
Electricity Unit Assignment

... 1. In a classroom demo, the dome of a Van de Graaff generator was initially charged negatively. A stream of closely spaced neutral soap bubbles was blown toward the dome of the generator. Much to the surprise of the LD and his students, the following observations were made: 1. The bubbles were initi ...
Aulenbacher_EUCARD_coordination_meeting3_talk
Aulenbacher_EUCARD_coordination_meeting3_talk

Chapter 5 Electrons in Atoms
Chapter 5 Electrons in Atoms

5 Quantum Theory of Radiation
5 Quantum Theory of Radiation

... where α labels the particles, qα and mα are the charge and the mass of each particle, and R is the center-of-mass coordinate. In the lecture this expression for Ĥint was used to calculate the Golden-Rule spontaneous transition rate from the initial state |ii to the final state |fi under emission of ...
ABSTRACTS Workshop on “Higher topological quantum field theory
ABSTRACTS Workshop on “Higher topological quantum field theory

A Timeline of Mathematics and Physics
A Timeline of Mathematics and Physics

... 1871 Norwegian mathematician Marius Sophus Lie publishes work on Lie algebras, opening up the field of differential topology and paving the way for gauge field theory 100 years later. 1873 James Clerk Maxwell publishes a set of equations from which all of the observed laws of electromagnetism could ...
Slide 1
Slide 1

... information transmission, teleportation; and 3. Given a criterion for success; We ask the question: How much of 1 do I need to achieve 2, while satisfying 3? Pursuing this question in the quantum case has led to, and presumably will continue to lead to, interesting new information ...
Particle Physics - Atomic physics department
Particle Physics - Atomic physics department

... Mechanics, Electrodynamics, Quantum Mechanics, Nuclear Physics, Atomic Physics and Interaction of Ionizing Radiation with Matter. The present course is a natural extension to them because its main topics of study are fundamental micro-objects (leptons, quarks, gluons, etc.) which, following given ru ...
Transition Probabilities and Selection Rules
Transition Probabilities and Selection Rules

... where J ≡ L+S is the total orbital plus spin angular momentum. The above rules are valid insofar as LS coupling is obeyed (i.e. L and S are good quantum numbers), which is true to the extent that the electrons are nonrelativistic. If LS coupling is violated, then terms may contain admixtures of diff ...
The Particle Odyssey
The Particle Odyssey

... Peter Higgs, ...
Turing Machine
Turing Machine

Figure 30-5 The Photoelectric Effect
Figure 30-5 The Photoelectric Effect

Phys. Rev. Lett. 100, 044106(1-4) - APS Link Manager
Phys. Rev. Lett. 100, 044106(1-4) - APS Link Manager

PHENOMENOLOGICAL QUANTUM GRAVITY
PHENOMENOLOGICAL QUANTUM GRAVITY

Standard model of particle physics
Standard model of particle physics

... If we look closely at this model, we see that different quarks in one particle can have the same quantum numbers like the three strange quarks in the Ω− hadron. But since quarks are fermions, we need an additional quantum number due to the Pauli exclusion principle. This new quantum number is called ...
Physics 228 Today: April 4, 2013 Do we fully
Physics 228 Today: April 4, 2013 Do we fully

... In non-relativistic quantum mechanics, there is not natural explanation for spin; it is added in an ad hoc manner. Two different ways of combining relativity with quantum mechanics were developed in the 1920s (now combined into QFT). One (Klein and Gordon) describes particles with integral spin. The ...
Syllabus: Quantum computing - University of Hawaii Physics and
Syllabus: Quantum computing - University of Hawaii Physics and

... Topics in current theoretical research; e.g., quantum informational representations of field theories. This course is an introduction to quantum information theory (qubits, quantum gates, and qubit systems). It covers a few selected quantum algorithms, yet the emphasis of the course is on quantum si ...
Document
Document

... • Orbital Defn: Orbitals are the “quantum” states that are available to electron. An orbital can be full (2 e-), half full (1e-), or empty. An orbital is a wave function, characterized by quantum numbers n (energy), l (shape), and m (direction). • An orbital is used to calculate the probability of f ...
chapter40
chapter40

... The average energy of a wave is the average energy difference between levels of the oscillator, weighted according to the probability of the wave being emitted This weighting is described by the Boltzmann distribution law and gives the probability of a state being occupied as being proportional to e ...
Van Wezel_DEF.indd
Van Wezel_DEF.indd

... Having firmly established that quantum mechanics is the correct way to describe microscopic particles, and having seen that the quantum properties of their constituent particles dictate the behavior of macroscopic materials in the Big World, one may begin to wonder why our everyday world does not lo ...
179 tut Tunneling - University of Maine Physics Education
179 tut Tunneling - University of Maine Physics Education

... E. Given enough time, do you expect that technology will advance to the point where one would be able to observe the quantum properties of everyday objects (i.e. bowling balls)? Why or why not? ...
Lyman alpha forest
Lyman alpha forest

< 1 ... 324 325 326 327 328 329 330 331 332 ... 514 >

Quantum electrodynamics



In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism giving a complete account of matter and light interaction.In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it ""the jewel of physics"" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron and the Lamb shift of the energy levels of hydrogen.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report