## 171 Citations

### ALMOST CLASSICAL CREATION OF A UNIVERSE

- Physics
- 2001

We study the problem of a 1 + 1 cord with a dynamical massless scalar field living in it, which separates a false vacuum and a conical region in a 2 + 1 space. A stable "particle-like" configuration…

### Can a man-made Universe be created by quantum tunneling without an initial singularity?

- Physics
- 1991

Essentially all modern particle theories suggest the possible existence of a false vacuum state – a metastable state with an energy density that cannot be lowered except by means of a very slow phase…

### M theory observables for cosmological space-times

- Physics, Mathematics
- 2001

We discuss the construction of the analog of an S-matrix for space-times that begin with a Big-Bang and asymptote to an FRW universe with nonnegative cosmological constant. When the cosmological…

### Initial conditions from the action principle: Application to cosmology and to false vacuum bubbles

- Physics
- 2013

### Vacuum bubble in an inhomogeneous cosmology

- Physics
- 2007

We study the propagation of bubbles of new vacuum in a radially inhomogeneous Lemaitre-Tolman-Bondi background that includes a cosmological constant. This exemplifies the classical evolution of a…

### Consistent Cosmic Bubble Embeddings

- Physics
- 2017

The Raychaudhuri equation for null rays is a powerful tool for finding consistent embeddings of cosmological bubbles into a background spacetime in a way that is largely independent of the matter…

### Is it possible to create a universe out of a monopole in the laboratory

- Physics
- 2006

To explore the possibility that an inflationary universe can be created out of a stable particle in the laboratory, we consider the classical and quantum dynamics of a magnetic monopole in the…

### Observers in an accelerated universe

- Mathematics, Physics
- 2011

If the current acceleration of our Universe is due to a cosmological constant, then a Coleman–De Luccia bubble will nucleate in our Universe. In this work, we consider that our observations could be…

## References

SHOWING 1-10 OF 14 REFERENCES

### Evolution of perturbations in an inflationary universe

- Physics
- 1982

We analyze the evolution of inhomogeneous density perturbations in a model of the very early universe that is dominated for a time by a constant energy density of a false quantum-mechanical vacuum,…

### Gravitational collapse and spacetime singularities

- Physics
- 1965

accompanied by a violent release of energy, possible in the form of gravitational radiation. The detailed mathematical discussion of such situations is difficult since the full complexity of general…

### Compactness Criterion for the Formation of Averaged Trapped Surfaces in Gravitational Collapse

- Geology, Mathematics
- 1973

S>An average trapped surface is defined as a closed two-surface with the property that the area of the wave fronts forined by light rays emitted in the orthogonal inward and outward directions are…

### Creation of Schwarzschild-de Sitter wormholes by a cosmological first-order phase transition

- Physics
- 1982

### Singular hypersurfaces and thin shells in general relativity

- Physics
- 1966

SummaryAn approach to shock waves, boundary surfaces and thin shells in general relativity is developed in which their histories are characterized in a purely geometrical way by the extrinsic…