RG flows, cycles, and c-theorem folklore

Autor: Curtright, Thomas L, Jin, Xiang, Zachos, Cosmas K
Rok vydání: 2011
Předmět:
Zdroj: Phys. Rev. Lett. 108, 131601 (2012)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.108.131601
Popis: Monotonic renormalization group flows of the "c" and "a" functions are often cited as reasons why cyclic or chaotic coupling trajectories cannot occur. It is argued here, based on simple examples, that this is not necessarily true. Simultaneous monotonic and cyclic flows can be compatible if the flow-function is multi-valued in the couplings.
Comment: 3 pages, 5 figures
Databáze: arXiv