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arXiv 1902.09965hep-th
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非相对论全息有效场论中的重整化群流

Renormalization Group Flows in Non-Relativistic Holographic Effective Field Theories

Georgios M. Koutentakis

摘要:

我们开发了一个形式主义与两个不同的UV截止尺度,一个空间和时间,适合于更丰富的结构的非洛伦兹不变的量子场论。在这种形式中,每个耦合常数都有两个不同的β函数,它们是由能量或动量截止点的独立变化引起的。对于具有旋转不变性的全息非相对论理论,我们开发了使用[JHEP ${\bf 1208}$,164(2012)]中开发的超势形式主义的推广来计算这种β函数的技术。然后,我们继续和计算的β函数周围的Lifshitz临界点,以及一般的Lifshitz不变理论与超标度破坏。最后,我们在弱耦合Lifshitz不变QFT中进行了类似的计算。

英文摘要:

We develop a formalism with two different UV cutoff scales, one for space and one for time, appropriate for the richer structure of non-Lorentz invariant quantum field theories. In this formalism there are two different beta-functions for each coupling constant, arising from independent variations of the energy or momentum cutoffs. For holographic non-relativistic theories with rotational invariance, we develop the technique to calculate such beta-functions using a generalization of the superpotential formalism developed in [JHEP ${\bf 1208}$, 164 (2012)]. We then proceed and compute the beta-function around a Lifshitz critical point, as well as for general Lifshitz-invariant theories with hyperscaling violation. Finally, we do a similar computation in a weakly-coupled Lifshitz invariant QFT.

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。

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