标题： 大尺度-小尺度对偶与宇宙学常数 显示英文标题

标题： Large scale-small scale duality and cosmological constant

摘要： 我们研究了一个源自引力经典模型的量子宇宙学模型，其中自相互作用标量场与引力耦合，度规经历了一个符号转变。 我们表明存在两种双经典的符号改变解，一种在大尺度上，另一种在小尺度上。 可以在两个尺度上通过一个无限小的有效宇宙学常数来微调物理。 显示英文摘要

摘要： We study a model of quantum cosmology originating from a classical model of gravitation where a self interacting scalar field is coupled to gravity with the metric undergoing a signature transition. We show that there are dual classical signature changing solutions, one at large scales and the other at small scales. It is possible to fine-tune the physics in both scales with an infinitesimal effective cosmological constant.