Is the Wick square infinitely divisible?
- 1 January 1977
- journal article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 18 (1) , 171-172
- https://doi.org/10.1063/1.523125
Abstract
We derive a sort of Lévy–Khintchine formula for the Wick square of the Euclidean free field in two and three dimensions and use it to show that the Euclidean Wick square is infinitely divisible. On the other hand, by analyzing the truncated four-point function we prove that the relativistic Wick square is not infinitely divisible in any space–time dimension.Keywords
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