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Participant |
Lee, Wonwoo | |||||||
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Institution |
Center for Quantum Spacetime - 35 Baekbeom-ro (Sinsu-dong), Mapo-gu - Seoul - - South Korea | |||||||
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Session |
EU1 |
Accepted |
Yes |
Order |
4 |
Time |
14:45 | 15' |
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Talk |
Oral abstract |
Title |
Tunneling without a barior : Fubini instantons in curved space | |||||
| Coauthors | Lee, Bum-Hoon; Ro, Daeho; Yeom, Dong-han | |||||||
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Abstract |
We study Fubini instantons of a self-gravitating scalar field. The Fubini instanton describes the decay of a vacuum state under tunneling instead of rolling in the presence of a tachyonic potential. The tunneling occurs from the maximum of the potential, which is a vacuum state, to any arbitrary state, belonging to the tunneling without a barrier. We numerically evaluate semiclassical exponents which give the finite tunneling probabilities. |
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Pdf file |
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