论文标题
2+1个时空维度的宇宙学中的标量量子场
Scalar quantum fields in cosmologies with 2+1 spacetime dimensions
论文作者
论文摘要
由于将Bose-Einstein凝结物用作时空曲率的量子模拟器的可能性，我们研究了在空间弯曲的Friedmann-Lema-Robertson-Walker-Walker Walker Univers中，具有$ D = 2+1+1 $ questestime尺寸的空间弯曲的相对论标量量子场。特别是，我们通过波动的光谱和几个两点场相关函数来研究由时间依赖性背景几何形状引起的粒子产生。我们为多种扩展方案得出了新的分析结果。
Motivated by the possibility to use Bose-Einstein condensates as quantum simulators for spacetime curvature, we study a massless relativistic scalar quantum field in spatially curved Friedmann-Lemaître-Robertson-Walker universes with $d=2+1$ spacetime dimensions. In particular, we investigate particle production caused by a time-dependent background geometry, by means of the spectrum of fluctuations and several two-point field correlation functions. We derive new analytical results for several expansion scenarios.
