Higher spatial derivative field theories
Higher spatial derivative field theories
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高等空间导数场论
DOI：
10.1103/physrevd.85.085018
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发表时间：
2011
影响因子：
5
通讯作者：
M. Gomes
中科院分区：
文献类型：
--
作者：
P. Gomes;M. Gomes
在这项工作中，我们采用重整化群方法来研究具有时空变量各向异性标度的场论的一般行为。伴随这些模型的洛伦兹破缺对称性要么是软的，如果没有更高的空间导数，或者它可能有一个更复杂的结构，如果更高的空间导数也包括在内。这两种情况进行了讨论，在模型中只有标量场，也与费米子作为汤川模型。
In this work, we employ renormalization group methods to study the general behavior of field theories possessing anisotropic scaling in the spacetime variables. The Lorentz breaking symmetry that accompanies these models are either soft, if no higher spatial derivative is present, or it may have a more complex structure if higher spatial derivatives are also included. Both situations are discussed in models with only scalar fields and also in models with fermions as a Yukawa like model.