空时的四单形自旋泡沫量子跃迁与度量涨落  

4-simplex spinfoam transition and metric fluctuation of spacetime

作　　者：邵丹[1] 邵亮[2] 

机构地区：[1]江汉大学光电信息研究所,武汉430056 [2]武汉科技大学理学院应用物理系,武汉430081

出　　处：《华中师范大学学报（自然科学版）》2010年第1期43-45,共3页Journal of Central China Normal University：Natural Sciences

基　　金：留学回国人员科研启动基金(教外司200724号)

摘　　要：利用四单形以及它的对偶1-骨架自旋网,描述了一种纯空时的量子跃迁,给出了跃迁振幅的表式.论证了自旋网编织成的3维空间在相邻跃迁阶梯间的顶角的体积改变,并给出了明确算式,同时得到了4维空时度量的一种平坦量子涨落模式.Using the 4-simplex and its duall-skeleton spin networks, a quantum transition of pure spacetime is described, and its transition amlitude is given. The change of vertex volumes between successive steps of the transition of the 3d space woven by spin networks is demonstrated, the explicit calcutation expressions are given. At the same time, a model of quantum flate fluctuation of the 4d spacetime is obtained.

关 键 词：顶角不变体积 自旋泡沫跃迁振幅 体积的量子胀缩 空时度量的平坦起伏 

分 类 号：O41[理学—理论物理]