Useful english dictionary. 2012.
Dirac sea — for a massive particle. • particles, • antiparticles The Dirac sea is a theoretical model of the vacuum as an infinite sea of particles with negative energy. It was first postulated by the British physicist Paul … Wikipedia
Dirac (disambiguation) — Dirac may refer to: *people: ** Paul Dirac (1902–1984), a British theoretical physicist, Nobel laureate, and a founder of the field of quantum physics ** Gabriel Andrew Dirac (1925–1984), a graph theorist* in physics: ** Dirac bracket, a… … Wikipedia
Dirac — may refer to: People Paul Dirac (1902–1984), British theoretical physicist, Nobel laureate, and a founder of the field of quantum physics Gabriel Andrew Dirac (1925–1984), graph theorist, Paul Dirac s stepson In physics Dirac bracket, a… … Wikipedia
Dirac delta function — Schematic representation of the Dirac delta function by a line surmounted by an arrow. The height of the arrow is usually used to specify the value of any multiplicative constant, which will give the area under the function. The other convention… … Wikipedia
Dirac large numbers hypothesis — Paul Dirac The Dirac large numbers hypothesis (LNH) is an observation made by Paul Dirac in 1937 relating ratios of size scales in the Universe to that of force scales. The ratios constitute very large, dimensionless numbers: some 40 orders of… … Wikipedia
Dirac (video compression format) — Schrödinger Developer(s) David Schleef Stable release 1.0.10 / October 7, 2010; 12 months ago (2010 10 07) Operating system Cross platform … Wikipedia
Dirac bracket — The Dirac bracket is a generalization of the Poisson bracket developed by Paul Dirac to correctly treat systems with second class constraints in Hamiltonian mechanics and canonical quantization. It is an important part of Dirac s development of… … Wikipedia
Dirac , Paul Adrien Maurice — (1902–1984) British mathematician and physicist Dirac, whose father was Swiss, was born in Bristol. After graduating in 1921 in electrical engineering at Bristol University, Dirac went on to study mathematics at Cambridge University, where he… … Scientists
Dirac equation — Quantum field theory (Feynman diagram) … Wikipedia
Dirac, P.A.M. — ▪ English physicist in full Paul Adrien Maurice Dirac born August 8, 1902, Bristol, Gloucestershire, England died October 20, 1984, Tallahassee, Florida, U.S. English theoretical physicist who was one of the founders of quantum mechanics… … Universalium
