Renormalization group flows, cycles, and c-theorem folklore.
Renormalization group flows, cycles, and c-theorem folklore.
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重正化群流、循环和 c 定理民间传说。
DOI：
10.1103/physrevlett.108.131601
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发表时间：
2012
影响因子：
8.6
通讯作者：
C. K. Zachos
中科院分区：
文献类型：
--
作者：
T. Curtright;Xiang Jin;C. K. Zachos
“c”和“a”函数的单调重整化群流经常被引用为循环或混沌耦合轨迹不能发生的原因。根据简单的例子，这里的论点是，这不一定是真的。如果流函数在耦合中是多值的，则同时单调和循环流可以兼容。
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.