Theory Group Special Seminar, 13 September 2016
Dr. Ali Masoumi, Columbia University
How rare are the vacua in large-dimensional landscapes?
abstract
String theory predicts a vast landscape which accommodates universes with
different properties. This complexity and large number of realizations
with different properties create the possibility of answering difficult
cosmological questions, especially the cosmological constant problem.
Recently, using statistical arguments, the viability of large dimensional
field spaces came under scrutiny. Here, we present a careful analysis of
the possible number of vacua in a toy landscape comprised of a Gaussian
random field.