arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0912.4852gr-qchep-phhep-th
收藏

具有反对称张量的Lorentz破坏

Lorentz violation with an antisymmetric tensor

Brett Altschul, Quentin G. Bailey, Alan Kostelecky

摘要:

研究了含有反对称2-张量的自发洛伦兹破坏的场论。构造了一个包含非最小引力耦合的一般作用量,讨论了Nambu-Goldstone模和质量模的特征。闵可夫斯基时空中的极小模型表现出与洛伦兹破坏矢量和标量理论的对偶性。黎曼时空中非极小模型的后牛顿展开涉及到定性的新特征,包括没有各向同性极限。在闵可夫斯基时空中产生稳定的洛伦兹破坏理论的某些相互作用在蝌蚪近似下求解重整化群方程。

英文摘要:

Field theories with spontaneous Lorentz violation involving an antisymmetric 2-tensor are studied. A general action including nonminimal gravitational couplings is constructed, and features of the Nambu-Goldstone and massive modes are discussed. Minimal models in Minkowski spacetime exhibit dualities with Lorentz-violating vector and scalar theories. The post-newtonian expansion for nonminimal models in Riemann spacetime involves qualitatively new features, including the absence of an isotropic limit. Certain interactions producing stable Lorentz-violating theories in Minkowski spacetime solve the renormalization-group equations in the tadpole approximation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑