scholarly journals False vacuum decay in a brane world cosmological model

2006 ◽  
Vol 38 (5) ◽  
pp. 953-962 ◽  
Author(s):  
Michal Demetrian
Keyword(s):  
Cosmological Model ◽  
Brane World ◽  
False Vacuum ◽  
Vacuum Decay

O(3)-invariant tunnelling at false vacuum decay in general relativity

1991 ◽  
Vol T36 ◽  
pp. 269-275 ◽  
Author(s):  
V A Berezin ◽  
V A Kuzmin ◽  
I I Tkachev
Keyword(s):  
General Relativity ◽  
False Vacuum ◽  
Vacuum Decay

scholarly journals False vacuum decay in kink scattering

2018 ◽  
Vol 2018 (10) ◽  
Author(s):  
Adalto R. Gomes ◽  
F. C. Simas ◽  
K. Z. Nobrega ◽  
P. P. Avelino
Keyword(s):  
False Vacuum ◽  
Vacuum Decay

scholarly journals Exact one-loop false vacuum decay rate

2020 ◽  
Vol 102 (12) ◽  
Author(s):  
Victor Guada ◽  
Miha Nemevšek
Keyword(s):  
Decay Rate ◽  
False Vacuum ◽  
Vacuum Decay

scholarly journals On catalyzed vacuum decay around a radiating black hole and the crisis of the electroweak vacuum

2020 ◽  
Vol 2020 (8) ◽  
Author(s):  
Takumi Hayashi ◽  
Kohei Kamada ◽  
Naritaka Oshita ◽  
Jun’ichi Yokoyama
Keyword(s):  
Black Hole ◽  
Scalar Field ◽  
Standard Model ◽  
Decay Rate ◽  
Early Universe ◽  
Hawking Radiation ◽  
False Vacuum ◽  
Vacuum Decay ◽  
Higgs Vacuum ◽  
The Standard Model

Abstract False vacuum decay is a key feature in quantum field theories and exhibits a distinct signature in the early Universe cosmology. It has recently been suggested that the false vacuum decay is catalyzed by a black hole (BH), which might cause the catastrophe of the Standard Model Higgs vacuum if primordial BHs are formed in the early Universe. We investigate vacuum phase transition of a scalar field around a radiating BH with taking into account the effect of Hawking radiation. We find that the vacuum decay rate slightly decreases in the presence of the thermal effect since the scalar potential is stabilized near the horizon. However, the stabilization effect becomes weak at the points sufficiently far from the horizon. Consequently, we find that the decay rate is not significantly changed unless the effective coupling constant of the scalar field to the radiation is extremely large. This implies that the change of the potential from the Hawking radiation does not help prevent the Standard Model Higgs vacuum decay catalyzed by a BH.

scholarly journals Functional methods for false-vacuum decay in real time

2019 ◽  
Vol 2019 (12) ◽  
Author(s):  
Wen-Yuan Ai ◽  
Björn Garbrecht ◽  
Carlos Tamarit
Keyword(s):  
Real Time ◽  
False Vacuum ◽  
Vacuum Decay ◽  
Functional Methods

scholarly journals False vacuum decay in the de sitter space-time

1999 ◽  
Vol 120 (3) ◽  
pp. 1194-1212 ◽  
Author(s):  
V. A. Rubakov ◽  
S. M. Sibiryakov
Keyword(s):  
De Sitter Space ◽  
Space Time ◽  
False Vacuum ◽  
De Sitter ◽  
Vacuum Decay

scholarly journals Numerical analysis of Coleman–de Luccia tunneling

2016 ◽  
Vol 31 (24) ◽  
pp. 1650131 ◽  
Author(s):  
Yuhei Goto ◽  
Kazumi Okuyama
Keyword(s):  
Decay Constant ◽  
Periodic Potential ◽  
Thin Wall ◽  
False Vacuum ◽  
Vacuum Decay ◽  
Text Type ◽  
Axion Decay Constant ◽  
Axion Decay ◽  
Range Of Values ◽  
Type Potential

In this paper, we study the false vacuum decay of a single scalar field [Formula: see text] coupled to gravity described by the Coleman–de Luccia (CdL) instanton. We show that it is possible to numerically calculate the bounce factor, which is related to the CdL tunneling rate, without using the thin-wall approximation. In this paper, we consider [Formula: see text]- and [Formula: see text]-type potentials as examples, which have cosmological and phenomenological applications. Especially, in the [Formula: see text]-type potential, we show that the range of values in which axion decay constant can take is restricted by the form of the periodic potential if the CdL tunneling occurs.

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