|
|
books
| book details |
Translation Group and Particle Representations in Quantum Field Theory
By (author) Hans-Jürgen Borchers
|
| on special |
normal price: R 2 192.95
Price: R 2 083.95
|
| book description |
At the time I learned quantum field theory it was considered a folk theo rem that it is easy to construct field theories fulfilling either the locality or the spectrum condition. The construction of an example for the latter case is particularly easy. Take for instance an irreducible representation of the Poincare group with positive energy, and as an algebra of observables all compact operators in that representation space. This algebra of observables is even an asymptotically Abelian algebra. Since it has only a single repre sentation - except for multiples of this one - it is hardly possible to replace locality in order to obtain a theory with a reasonable physical structure. This example shows that it is not sufficient to replace locality by asymptotic Abelian-ness. The construction of a theory fulfilling locality without a pos itive energy representation was first done by Doplicher, Regge, and Singer [DRS]. However, modern investigations on the locality ideal in the algebra oftest functions, started by Alcantara and Yngvason [AY], seem to indicate that this is a general feature; this means that most of the algebras of ob servables fulfilling the locality condition will not have representations that also fulfil the spectrum condition. This discussion shows that quantum field theory becomes a subject of interest only if both conditions are satisfied at the same time.
| product details |
Normally shipped |
Publisher | Springer-Verlag Berlin and Heidelberg GmbH & Co. KG
Published date | 18 Apr 2014
Language |
Format | Paperback / softback
Pages | 136
Dimensions | 235 x 155 x 0mm (L x W x H)
Weight | 0g
ISBN | 978-3-6621-4078-9
Readership Age |
BISAC | science / quantum theory
| other options |
|
|
To view the items in your trolley please sign in.
| sign in |
|
|
|
| specials |
|
Victor Frankenstein driven by the mad dream of creating his own creature, experiments with alchemy and science to build a monster stitched together from dead remains.
|
|
Katie Daysh
Paperback / softback
384 pages
was: R 295.95
now: R 259.95
|
|
This is indeed a story of mercy and the redemption it offers.
|
|
|
|
