Dynamics in Nonlocal Cosmological Models Derived from String Field Theory

Understand

A general class of nonlocal cosmological models is considered.

• A new method for solving nonlocal Friedmann equations is proposed, and solutions of the Friedmann equations with nonlocal operator are presented.
• The cosmological properties of these solutions are discussed.
• Especially indicated is $p$-adic cosmological model in which we have obtained nonsingular bouncing solution and string field theory tachyon model in which we have obtained full solution of nonlocal Friedmann equations with $w=-1$ at large times.