Topics in early universe cosmology

点击翻译按钮获取中文摘要

My work spans a wide range of topics in theoretical cosmology, ranging from the search of a new early universe scenario based on superstring theory to searches for specific signatures of current models of structure formation. At the moment, the main emphasis of my research is on superstring cosmology. In particular, we are exploring ``string gas cosmology'', a toy model of string cosmology which makes crucial use of aspects which differentiate string theory from previous theories. We have proposed a new structure formation scenario based on string gas cosmology, and one aspect of the proposed work will be to work out in more detail its specific predictions for observations. String gas cosmology is, however, a toy model. A major part of my research effort in the medium term will be to turn the model into a real theory.