发表机构
Kobe University(神户大学)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
该研究提出准晶暴胀理论,推导其非对角关联的动量转移限制,发现纯相子位移可产生局域功率偶极矩,为原初准周期序提供特征观测信号。
AI 中文摘要
我们提出准晶暴胀理论,六个准周期相分解为三个声子和三个相子。研究发现,相干纯相子位移可产生局域功率偶极矩,而无迹线性四极矩消失。通过空间变化的二次有效场论,我们推导了非对角关联,其动量转移被限制在二十面体波矢的六个整数组合内。这些关联的非对角信号为原初准周期序(即原初衍射)提供了特征观测信号。
英文摘要
We propose quasicrystalline inflation. Six quasiperiodic phases decompose into three phonons and three phasons. It turns out that a coherent pure-phason displacement can generate a local power dipole while the linear traceless quadrupole vanishes. From spatially varying quadratic effective field theory, we derive off-diagonal correlations whose momentum transfer is restricted to integer combinations of the six icosahedral wavevectors. These correlated off-diagonal signals provide a characteristic observational signature of primordial quasiperiodic order, primordial diffraction.
Comments21 pages, 1 figure