标题： 一种时空泡沫的近似模型 显示英文标题

标题： An Approximate Model of the Spacetime Foam

摘要： 提供了一种时空泡沫的近似模型，其中量子手柄（虫洞）是一个五维类似虫洞的解。 忽略虫洞喉部的线性尺寸，我们可以引入一个旋量场以对泡沫进行近似和有效的描述。 旋量场的定义可以通过动态和非动态的方式进行。 在第一种情况下，使用一些场方程，第二种情况导致超空间。 结果表明：具有泡沫的时空类似于带有偶极子的电介质，以及具有旋量和电磁场之间非最小相互作用的超引力理论可以被视为时空泡沫的有效模型。 显示英文摘要

摘要： An approximate model of the spacetime foam is offered in which a quantum handle (wormhole) is a 5D wormhole-like solution. Neglecting the linear sizes of the wormhole throat we can introduce a spinor field for an approximate and effective description of the foam. The definition of the spinor field can be made by a dynamic and non-dynamic ways. In the first case some field equations are used and the second case leads to superspace. It is shown that : the spacetime with the foam is similar to a dielectric with dipoles and supergravity theories with a non-minimal interaction between spinor and electromagnetic fields can be considered as an effective model for the spacetime foam.