String theory attempts to describe the known forces and particles as vibrations of 1-D objects called strings. As many researchers working on string theory believe, it should in principle unite all the known forces, including gravity, with the quantum effects, which makes string theory a candidate for the so called theory of everything. And one of the main motivations of uniting gravity with quantum mechanics is to understand such exotic objects as the singularities in the hearth of black holes and the beginning of the universe.
In this TEDx talk Ali Nayeri describes the connection between string theory and cosmology and how it would enable physicists to understand the early universe better. Ali Nayeri, Ph.D., is a member of the Center for Quantum Studies at Chapman University, and a faculty member in the university’s Schmid College of Science and Technology. He is also a member of the Kavli Institute for Theoretical Physics at UC Santa Barbara, and is an active member of the Union of Concerned Scientists and the Federation of American Scientists.