False vacuum decay in a brane world cosmological model
نویسنده
چکیده
The false vacuum decay in a brane world model is studied in this work. We investigate the vacuum decay via the Coleman-de Luccia instanton, derive explicit approximative expressions for the Coleman-de Luccia instanton which is close to a Hawking-Moss instanton and compare the results with those already obtained within Einstein’s theory of relativity.
منابع مشابه
Vacuum decay on a brane world
It is widely believed that as the universe cools it undergoes a series of phase transitions. Each of these involves a transition from a metastable ‘‘false vacuum’’ ground state to a stable one, the ‘‘true vacuum’’. In the case of a first order transition, this change is initiated by the nucleation of bubbles of true vacuum. These then expand at a speed asymptotically approaching that of light, ...
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