Exact correlation functions in the Brownian Loop Soup
Abstract
We compute analytically and in closed form the four-point correlation function in the plane, and the two-point correlation function in the upper half-plane, of layering vertex operators in the two dimensional conformally invariant system known as the Brownian Loop Soup. These correlation functions depend on multiple continuous parameters: the insertion points of the operators, the intensity of the soup, and the charges of the operators. In the case of the four-point function there is non-trivial dependence on five continuous parameters: the cross-ratio, the intensity, and three real charges. The four-point function is crossing symmetric. We analyze its conformal block expansion and discover a previously unknown set of new conformal primary operators.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- July 2020
- DOI:
- 10.1007/JHEP07(2020)067
- arXiv:
- arXiv:1912.00973
- Bibcode:
- 2020JHEP...07..067C
- Keywords:
-
- Conformal Field Theory;
- Integrable Field Theories;
- Random Systems;
- Stochastic Processes;
- Mathematical Physics;
- Condensed Matter - Statistical Mechanics;
- High Energy Physics - Theory;
- Mathematics - Probability
- E-Print:
- 28 pages, 2 figures