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The Newton-Wigner localization concept and noncommutative space

✍ Scribed by R. M. Mir-Kasimov

Publisher
Springer
Year
2005
Tongue
English
Weight
464 KB
Volume
55
Category
Article
ISSN
0011-4626

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πŸ“œ SIMILAR VOLUMES

On Newton-Wigner localization and superl
On Newton-Wigner localization and superluminal propagation speeds
✍ S.N.M. Ruijsenaars πŸ“‚ Article πŸ“… 1981 πŸ› Elsevier Science 🌐 English βš– 626 KB

We study the acausal behavior of free massive relativistic particles, as predicted by the Newton-Wigner position operator. The main result is an upper bound for the probability of superluminal propagation speeds. This bound implies the detection probability of acausal events is vanishingly small und

On the Newton – Wigner Coordinate for a
On the Newton – Wigner Coordinate for a Scalar Particle
✍ M. I. Shirokov πŸ“‚ Article πŸ“… 1962 πŸ› John Wiley and Sons 🌐 English βš– 216 KB

## Abstract In 1949 Newton and Wigner have obtained a non‐covariant coordinate **__q__** of the scalar particle on the basis of some postulates. It is shown that the ordinary coordinate **__x__** satisfies all physical and mathematical requirements underlying their postulates if the definition (3)

Unitary quantum field theory on the nonc
Unitary quantum field theory on the noncommutative Minkowski space
✍ D. Bahns πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 123 KB

## Abstract This is an exposition of joint work with S. Doplicher, K. Fredenhagen, and Gh. Piacitelli [1]. The violation of unitarity found in quantum field theory on noncommutative spacetimes in the context of the so‐called modified Feynman rules is linked to the notion of time ordering implicitly