scattering theory, a part of mathematical physics, the Dyson series, formulated by Freeman Dyson, is a perturbative expansion of the time evolution operator...

Dyson conjecture Dyson equation Dyson numbers Dyson operator Dyson series Dyson sphere Dyson tree Dyson's crank Dyson's eternal intelligence Dyson's transform...

extraterrestrial intelligence. Since Dyson's paper, many variant designs involving an artificial structure or series of structures to encompass a star have...

Dyson may refer to: Dyson (surname), people with the surname Dyson Dyson (company), a Singaporean multinational home appliances company founded by James...

time-dependent perturbation theory Dyson series. To see this, write the unitary evolution operator, obtained from the above Dyson series, as U ( t ) = 1 − i λ ℏ...

Dyson is a Singapore-based company and manufacturer of bagless vacuum cleaners (using cyclonic separation and brushless electric motors), heatless hand...

widely used expression for the S-matrix is the Dyson series. This expresses the S-matrix operator as the series: S = ∑ n = 0 ∞ ( − i ) n n ! ∫ ⋯ ∫ d 4 x 1...

Sir James Dyson (born 2 May 1947) is a British inventor, industrial designer, farmer, and business magnate who founded the Dyson company. He is best known...

momentum) the series is called old-fashioned perturbation theory (or time-dependent/time-ordered perturbation theory). The Dyson series can be alternatively...

states of the theory. The result is a set of Feynman rules for use in a Dyson series perturbative expansion of the S-matrix which guarantee that it is unitary...

Gentleman in Jonathan Strange & Mr Norrell (2015), and Piet Van Der Valk in TV series Van Der Valk (2020). Other notable credits include Burn Up (2008), and Snatch...

Jeremy Dyson (born 14 June 1966) is a British author, musician and screenwriter who, along with Mark Gatiss, Steve Pemberton and Reece Shearsmith, is...

Doctor Miles Bennett Dyson is a character in the sci-fi franchise Terminator. He is the original inventor of the microprocessor which would lead to the...

: 355ff  e.g., in the derivation of Fermi's golden rule,: 359–363  or the Dyson series: 355–357  in quantum field theory: in 1947, Shin'ichirō Tomonaga and...

theorem is used to quickly rewrite each time ordered summand in the Dyson series as a sum of normal ordered terms. In the limit of asymptotically free...

A Dyson tree is a hypothetical genetically engineered plant (perhaps resembling a tree) capable of growing inside a comet, suggested by the physicist...

Christopher Dyson (born February 24, 1978) is an American professional racing driver who competed in the American Le Mans Series for Dyson Racing from...

Jarrod Martel Dyson (born August 15, 1984) is an American former professional baseball center fielder. He has played in Major League Baseball (MLB) for...

Robert Richard "Rob" Dyson (born June 21, 1946) is a retired American sports car racing driver and owner of Dyson Racing. Dyson began competing in amateur...

Elsie Noël Dyson (23 December 1916 – 29 June 1995) was an English character actress. Dyson played a number of roles in theatre, television and films (including...

and that the perturbation starts at t0 = 0; otherwise one must use the Dyson series, formally written as U ( t ) = T [ exp ⁡ ( − i ℏ ∫ t 0 t d t ′ H ( t...

who, along with Jeremy Dyson, formed the League of Gentlemen comedy troupe in 1995. The series originally aired for three series from 1999 until 2002,...

Ronald Dyson (June 5, 1950 – November 10, 1990) was an American soul and R&B singer and actor. He had a lead role in the Broadway production of Hair and...

Tracy Caldwell Dyson (born Tracy Ellen Caldwell; August 14, 1969) is an American chemist and NASA astronaut. She was a mission specialist on Space Shuttle...

Andy Dyson (series 4) Steven Mackintosh as Clive Norton a.k.a. "The Street" (series 5) David O'Hara as Detective Sergeant Gerry Rankine (series 5) Marsha...

Bill Owen as George Chambers, Thelma's father Joan Hickson (Series 1) and Noel Dyson (Series 2) as Mrs Chambers, Thelma's mother Anita Carey as Susan Chambers...

as perturbations of the free field solutions, for example using the Dyson series. It should be observed that the decomposition into free fields and interactions...

will be preserved. Ordered exponential (essentially the same concept) Dyson series Gauge theory S-matrix Steven Weinberg, The Quantum Theory of Fields,...

Dyson series article. The Green's functions may also be obtained from a generating function that is constructed as a solution to the Schwinger–Dyson equation...

baseball at South Carolina. Dyson is one of the few people to have won both a College World Series and a World Baseball Classic. Dyson was born in Tampa, Florida...