标题： 从自旋泡沫模型中出现标量物质 显示英文标题

标题： Emergence of scalar matter from spinfoam model

摘要： 研究了一种与标量场非最小耦合的3D引力的自旋泡沫模型。 通过标量场的离散化，该模型以纯粹组合的方式被精确地推导出来。 结果表明，标量物质的量子物理完全编码在描述空间量子几何的SU(2)自旋网络状态的修改动力学中。 结果表明，与引力耦合的标量物质在低能尺度下的物理可以被视为由此微观构造产生的现象。 这为几何与物质统一问题提供了一个根本性的观察。 显示英文摘要

摘要： A spinfoam model of 3D gravity non-minimally coupled with a scalar field is studied. By discretization of the scalar field, the model is worked out precisely in a purely combinational way. It is shown that the quantum physics of the scalar matter are totally encoded into the modified dynamics of SU(2) spin-network states which describe the quantum geometry of space. It turns out that the physics of the scalar matter coupled with gravity manifested in the low energy scale can be viewed as the phenomena emerged from this microscopical construction. This gives rise to a radical observation on the issue of the unification of geometry and matter.