Can I read The Stability of the Minisuperspace on EtoBox?

The Stability of the Minisuperspace by Ishikawa, Atushi; Isse, Toshiki is a scholarly article available to read on EtoBox.

What is The Stability of the Minisuperspace about?

The stability of the minisuperspace model of the early universe is studied by solving the Wheeler-DeWitt equation numerically. We consider a system of Einstein gravity with a scalar field. When we solve the Wheeler-DeWitt equation, we pick up some inhomogeneous wave modes from the infinite number of modes adequately: degrees of freedom of the superspace are restricted to a finite one. We show that the minisuperspace is stable when a scale factor ($a$) of the universe is larger than a few times of the Planck length, while it becomes unstable when $a$ is comparable to the Planck length.

Author

Ishikawa, Atushi; Isse, Toshiki

Published

1993

Language

EN