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首页> 外文期刊>The European physical journal, C. Particles and fields >Myers–Pospelov model as an ensemble of Pais–Uhlenbeck oscillators: unitarity and Lorentz invariance violation
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Myers–Pospelov model as an ensemble of Pais–Uhlenbeck oscillators: unitarity and Lorentz invariance violation

机译:Myers-Pospelov模型作为Pais-Uhlenbeck振荡器的集合:单一性和Lorentz不变性违反

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摘要

We study a generalization of the Pais–Uhlenbeck oscillator for fermionic variables. Next, we consider an ensemble of these oscillators and we identify a particular case of theMyers–Pospelov model which is relevant for effective theories of quantum gravity. Finally, by taking advantage of this connection, we analyze, for this model, unitarity at one loop order in the low energy regime where no ghost states can be created on-shell. This energy regime is the relevant one when we consider the Myers–Pospelov model as a true effective theory coming from a new space-time structure.
机译:我们研究了铁离子变量的Pais–Uhlenbeck振荡器的一般化。接下来,我们考虑这些振荡器的集合,并确定Myers-Pospelov模型的特殊情况,该情况与有效的量子引力理论有关。最后,通过利用这种连接,我们针对该模型分析了在低能态下无法在壳上创建幻影状态的一个循环顺序下的统一性。当我们将Myers-Pospelov模型视为来自新的时空结构的真正有效的理论时,这种能量机制就是相关的。

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