期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.131601
关键词
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资金
- NSF [0855386]
- U.S. Department of Energy, Division of High Energy Physics [DE-AC02-06CH11357]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0855386] Funding Source: National Science Foundation
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 multivalued in the couplings.
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