标题： 从弦理论出发的暗物质领域模型 显示英文标题

标题： Towards a Dark Sector Model from String Theory

摘要： 将具有以下特点的统一暗物质区模型嵌入到弦理论中的方法被提出：来自Kalb-Ramond 2形式场的模型无关轴子被识别为暗物质场，Kähler模场的实部——其中一个额外空间维度的“半径”——解释了暗能量。通过规范子凝聚机制稳定了稀释子场的期望值。通过一些温和的调整稳定后的稀释子期望值，得到了对应于现实低能尺度的暗能量势。所产生的势再现了我们两人之前提出的暗物质区模型中的势。 显示英文摘要

摘要： An embedding of a unified dark sector model into string theory with the following features is proposed: The model-independent axion descending from the Kalb-Ramond 2-form field is identified with the dark-matter field, and the real part of a K\"ahler modulus field -- the ``radius'' of one of the extra spatial dimensions -- accounts for dark energy. The expectation value of the dilaton field is stabilized by a gaugino condensation mechanism. A dark-energy potential corresponding to a realistic low energy scale results from some gentle tuning of the stabilized expectation value of the dilaton. The resulting potential reproduces the one in a previous dark-sector model proposed by two of us.