标题： Hořava-Lifshitz 引力中原始引力波的量子性质与 HBT 干涉术 显示英文标题

标题： HBT Interferometry and Quantum Nature of Primordial Gravitational Waves in Hořava-Lifshitz Gravity

摘要： Hořava-Lifshitz 引力（确切地说，是它的可投影版本）被认为是一种可重正化、幺正且渐近自由的引力量子场论。 值得注意的是，它的一个宇宙学预测是，它可以产生尺度不变的原始密度涨落和原始引力波，而无需依赖于膨胀。 在本文中，我们研究了在 Hořava-Lifshitz 引力中生成的原始引力波的量子性质。 有人提出，对于某些膨胀模型，可以通过 Hanbury Brown-Twiss (HBT) 干涉仪检测处于压缩相干量子态的原始引力波的非经典性。 我们表明，在 Hořava-Lifshitz 引力中，尺度不变的原始引力波可以在宇宙的辐射主导阶段和物质主导阶段生成。 此外，显示了它们的量子特征的频率范围超出了膨胀模型的范围。 显示英文摘要

摘要： Ho\v{r}ava-Lifshitz gravity (to be precise, its projectable version) is recognized as a renormalizable, unitary, and asymptotically free quantum field theory of gravity. Notably, one of its cosmological predictions is that it can produce scale-invariant primordial density fluctuations and primordial gravitational waves without relying on inflation. In this paper, we investigate the quantum nature of the primordial gravitational waves generated in Ho\v{r}ava-Lifshitz gravity. It has been suggested that, for some inflationary models, the non-classicality of primordial gravitational waves in the squeezed coherent quantum state can be detected using the Hanbury Brown - Twiss (HBT) interferometry. We show that in Ho\v{r}ava-Lifshitz gravity, scale-invariant primordial gravitational waves can be generated during both the radiation-dominated and matter-dominated eras of the Universe. Moreover, the frequency range of their quantum signatures is shown to extend beyond that of inflationary models.