Exploring de Sitter space to explain early universe gravity.

Researchers from Kyoto University are exploring 'de Sitter space' to explain gravity in the expanding early universe by invoking a higher dimension. They have developed a method to compute correlation functions among fluctuations on the expanding universe by making use of holography. The team's calculations only considered a three-dimensional universe as a test case, but the analysis may easily be extended to a four-dimensional universe, allowing for the extraction of information from our real world. The approach possibly contributes to validating superstring theory and allows for practical calculations about the subtle changes that rippled across the fabric of our early universe.