Primordial features are one of the most important extensions of the Standard Model of cosmology, providing a wealth of information on the primordial Universe, ranging from discrimination between inflation and alternative scenarios, new particle detection, to fine structures in the inflationary potential. Prof. Cora Dvorkin and colleagues from Harvard-Smithsonian CfA, Sun Yat-Sen University, and University of Barcelona published an article in Journal of Cosmology and Astroparticle Physics in which they examine the prospects of future large-scale structure (LSS) surveys on the detection and constraints of these features.
This image shows the basic setup that enables researchers to use lasers as optical “tweezers” to pick individual atoms out from a cloud and hold them in place. The atoms are imaged onto a camera, and the traps are generated by a laser that is split into many different focused laser beams. This allows a single atom to be trapped at each focus. [Image reprinted with permission from AAAS ©2016]