# What Is Qed?

Author: Albert
Published: 19 Nov 2021

### Quod erat demonstrandum in Latin

The Latin phrase quod erat demonstrandum means "which was to be demonstrated" and is an initialism of Q.E.D. It states what was to be shown. The abbreviation is placed at the end of mathematical proof and philosophical arguments in print publications to indicate that the proof is complete.

The beginning and end of proofs have been demarcated by mathematicians since the time of Euclid. The formal statements of the lemmas and theorems are set in italics in printed English language texts. The beginning of a proof usually follows immediately afterwards, and is indicated by the word "proof" in boldface or italics.

### The Theory of Complex Numbers

QED has been used as a template for all subsequent quantum field theories. The present form of quantum chromodynamics was achieved in the 1970s by H. David Politzer, Sidney Coleman, David Gross and Frank Wilczek. The work of Schwinger, Gerald Guralnik, Dick Hagen, and Tom Kibble were the first to show weak nuclear force and quantum electro could be shown independently.

The rules for adding or multiplying are the same. You add or multiply probabilities instead of adding or subtracting probability amplitudes that are complex numbers. The theory of complex numbers includes addition and multiplication.

The sum is found in the following order. The start of the second arrow should be at the end of the first. The sum is a third arrow that goes from the beginning of the first to the end of the second.

The length of an arrow is the product of two lengths. A quantum field theory can be considered viable if it is normalizability. All theories describing fundamental interactions are renormalizable.

### Coulomb's Law and the Force

QED is a quantum field theory of the force. The classical theory of electromagnetism says that the force between two electrons is caused by the electric field produced by each electron at the other's position. Coulomb's law can be used to calculate the force.

### QED vs. Quantum Chromodynamical Description

QED stands for quantum electrodynamics and QCD for quantum chromodynamics. The interactions of charged particles with the field of the universe is what QED describes, whereas the interactions of quarks and gluons are what QCD describes. QED is a type of quantum chromodynamics. The interactions of charged particles with the field of the universe is what QED describes, whereas the interactions of quarks and gluons are what QCD describes.

### Qcow2: A New Version of the qedota-based Open Source Code

QED is not recommended for new images. Today qcow2 provides more features and better performance than previous images, and has an actively maintained code base, so converting existing images to qcow2 should be considered.

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