Tunneling in Theories with Many Fields
| Autor: | Michael Dine, Sonia Paban |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
High Energy Physics - Theory Nuclear and High Energy Physics Vacuum state FOS: Physical sciences Action (physics) Theoretical physics High Energy Physics - Phenomenology Fourth order Extension (metaphysics) High Energy Physics - Phenomenology (hep-ph) High Energy Physics - Theory (hep-th) Quantum mechanics Metastability Scaling Quantum tunnelling Landscape model |
| Zdroj: | Journal of High Energy Physics |
| Popis: | The possibility of a landscape of metastable vacua raises the question of what fraction of vacua are truly long lived. Naively any would-be vacuum state has many nearby decay paths, and all possible decays must be suppressed. An interesting model of this phenomena consists of $N$ scalars with a random potential of fourth order. Here we show that the scaling of the typical minimal bounce action with $N$ is readily understood, and differs from statements in the literature. We discuss the extension to more realistic landscape models. 15 pages References added, some typos fixed |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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