False vacuum inflation with Einstein gravity

We investigate and classify the possible types of false vacuum bubbles in Einstein gravity. The false vacuum bubbles can occur only if gravity is taken into account. We show that there exist solutions only with compact geometries. The analytic computations for the radius and nucleation rate of a vacuum bubble are evaluated using the thin-wall approximation. We discuss possible cosmological implications of our new solutions.

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THE FATE OF THE FALSE VACUUM IN EINSTEIN GRAVITY THEORY WITH NONMINIMALLY-COUPLED SCALAR FIELD

International Journal of Modern Physics D ◽

10.1142/s0218271805006766 ◽

2005 ◽

Vol 14 (06) ◽

pp. 1063-1073 ◽

Cited By ~ 3

Author(s):

WONWOO LEE ◽

CHUL H. LEE

Keyword(s):

Scalar Field ◽

Einstein Gravity ◽

Bubble Nucleation ◽

Decay Rates ◽

Thin Wall ◽

False Vacuum ◽

Vacuum Decay ◽

Standard Result ◽

True Vacuum ◽

Theories Of Gravity

The decay of false vacuum via the true vacuum bubble nucleation has been explored in Einstein theories of gravity with nonminimally-coupled scalar field using Coleman–De Luccia's semiclassical instanton approximation. In this case the false vacuum decay rates and the radius of the bubbles in Coleman's thin-wall approximation have been computed analytically and numerically with several values of nonminimal coupling constant and compared with the standard result obtained by Coleman–De Luccia in the context of scalar field minimally-coupled to Einstein gravity.

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Induced Einstein gravity from infinite towers of states

Nuclear Physics B ◽

10.1016/j.nuclphysb.2021.115312 ◽

2021 ◽

Vol 964 ◽

pp. 115312

Author(s):

A. Kehagias ◽

H. Partouche ◽

B. de Vaulchier

Keyword(s):

Einstein Gravity

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False vacuum decay in a two-dimensional black hole spacetime

Physical Review D ◽

10.1103/physrevd.103.085009 ◽

2021 ◽

Vol 103 (8) ◽

Author(s):

Taiga Miyachi ◽

Jiro Soda

Keyword(s):

Black Hole ◽

Two Dimensional ◽

False Vacuum ◽

Vacuum Decay ◽

Black Hole Spacetime ◽

Dimensional Black Hole

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Uptunneling to de Sitter

Journal of High Energy Physics ◽

10.1007/jhep09(2020)070 ◽

2020 ◽

Vol 2020 (9) ◽

Author(s):

Mehrdad Mirbabayi

Keyword(s):

Black Holes ◽

Black Hole ◽

False Vacuum ◽

De Sitter ◽

Dimensional Theory ◽

Hole Geometry ◽

Horizon Geometry ◽

Two Sides ◽

Extremal Black Holes

Abstract We propose a Euclidean preparation of an asymptotically AdS2 spacetime that contains an inflating dS2 bubble. The setup can be embedded in a four dimensional theory with a Minkowski vacuum and a false vacuum. AdS2 approximates the near horizon geometry of a two-sided near-extremal Reissner-Nordström black hole, and the two sides can connect to the same Minkowski asymptotics to form a topologically nontrivial worm- hole geometry. Likewise, in the false vacuum the near-horizon geometry of near-extremal black holes is approximately dS2 times 2-sphere. We interpret the Euclidean solution as describing the decay of an excitation inside the wormhole to a false vacuum bubble. The result is an inflating region inside a non-traversable asymptotically Minkowski wormhole.

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Chern-Simons gravity dual of BCFT

Journal of High Energy Physics ◽

10.1007/jhep04(2021)193 ◽

2021 ◽

Vol 2021 (4) ◽

Author(s):

Tadashi Takayanagi ◽

Takahiro Uetoko

Keyword(s):

Field Theory ◽

Conformal Field Theory ◽

Entanglement Entropy ◽

Einstein Gravity ◽

Conformal Field ◽

Holographic Entanglement Entropy ◽

The World ◽

Higher Spin ◽

End Of The World ◽

Chern Simons

Abstract In this paper we provide a Chern-Simons gravity dual of a two dimensional conformal field theory on a manifold with boundaries, so called boundary conformal field theory (BCFT). We determine the correct boundary action on the end of the world brane in the Chern-Simons gauge theory. This reproduces known results of the AdS/BCFT for the Einstein gravity. We also give a prescription of calculating holographic entanglement entropy by employing Wilson lines which extend from the AdS boundary to the end of the world brane. We also discuss a higher spin extension of our formulation.

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