these quantities
21On shell renormalization scheme — In quantum field theory, and especially in quantum electrodynamics, the interacting theory leads to infinite quantities that have to be absorbed in a renormalization procedure, in order to be able to predict measurable quantities. The… …
22Cumulant — In probability theory and statistics, the cumulants κn of a probability distribution are a set of quantities that provide an alternative to the moments of the distribution. The moments determine the cumulants in the sense that any two probability …
23Path integral formulation — This article is about a formulation of quantum mechanics. For integrals along a path, also known as line or contour integrals, see line integral. The path integral formulation of quantum mechanics is a description of quantum theory which… …
24algebra, elementary — Introduction branch of mathematics that deals with the general properties of numbers and the relations between them. Algebra is fundamental not only to all further mathematics and statistics but to the natural sciences, computer science,… …
25Metamaterial cloaking — Electromagnetism Electricity · …
26Complex number — A complex number can be visually represented as a pair of numbers forming a vector on a diagram called an Argand diagram, representing the complex plane. Re is the real axis, Im is the imaginary axis, and i is the square root of –1. A complex… …
27Perturbation theory (quantum mechanics) — In quantum mechanics, perturbation theory is a set of approximation schemes directly related to mathematical perturbation for describing a complicated quantum system in terms of a simpler one. The idea is to start with a simple system for which a …
28Viet Cong and PAVN logistics and equipment — The Main Force of the People s Liberation Armed Forces (better known as the Viet Cong or VC in the West) and the NVA (North Vietnamese Army/People s Army Vietnam) used well organized logistics methods to supply and equip their fighting forces.… …
29Viet Cong and Vietnam People's Army logistics and equipment — Trailporters The Viet Cong and the People s Army of Vietnam (PAVN or North Vietnamese Army) used well organized logistics methods to supply and equip their fighting forces. This logistics organization contributed to the defeat of their American… …
30Random number generator attack — The security of cryptographic systems depends on some secret data that is known to authorized persons but unknown and unpredictable to others. To achieve this unpredictability, some randomization is typically employed. Modern cryptographic… …
