Hyperbolic string vertices
- Perimeter Institute of Theoretical Physics, Waterloo (Canada); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Massachusetts Institute of Technology (MIT), Cambridge, MA (United States)
The string vertices of closed string field theory are subsets of the moduli spaces of punctured Riemann surfaces that satisfy a geometric version of the Batalin-Vilkovisky master equation. We present a homological proof of existence of string vertices and their uniqueness up to canonical transformations. Using hyperbolic metrics on surfaces with geodesic boundaries we give an exact construction of string vertices as sets of surfaces with systole greater than or equal to L with L ≤ 2 arcsinh 1. Intrinsic hyperbolic collars prevent the appearance of short geodesics upon sewing. The surfaces generated by Feynman diagrams are naturally endowed with Thurston metrics: hyperbolic on the vertices and flat on the propagators. For the classical theory the length L is arbitrary and, as L → ∞hyperbolic vertices become the minimal-area vertices of closed string theory
- Research Organization:
- Massachusetts Institute of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); Krembil Foundation; Perimeter Institute for Theoretical Physics; Natural Sciences and Engineering Research Council of Canada (NSERC)
- Grant/Contract Number:
- SC0012567
- OSTI ID:
- 1976442
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 2 Vol. 2022; ISSN 1029-8479
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English