# Negative mass bubbles in de Sitter spacetime

@article{Mbarek2014NegativeMB, title={Negative mass bubbles in de Sitter spacetime}, author={Saoussen Mbarek and M. B. Paranjape}, journal={Physical Review D}, year={2014}, volume={90}, pages={101502} }

We study the possibility of the existence of negative mass bubbles within a de Sitter space-time background with matter content corresponding to a perfect fluid. It is shown that there exist configurations of the perfect fluid, that everywhere satisfy the dominant energy condition, the Einstein equations and the equations of hydrostatic equilibrium, however asymptotically approach the exact solution of Schwarzschid-de Sitter space-time with a negative mass.

## 23 Citations

Stable, Thin Wall, Negative Mass Bubbles in de Sitter Space-Time

- PhysicsQuantum Theory and Symmetries
- 2020

Negative mass makes perfect physical sense as long as the dominant energy condition is satisfied by the corresponding energy-momentum tensor. Heretofore, only {\it configurations} of negative mass…

Negative Mass Black Holes in de-Sitter Space

- Physics
- 2022

We show that asymptotically de Sitter black holes of negative mass can exist in Lovelock gravity. Such black holes have horizon geometries with non-constant curvature and are known as Exotic Black…

Black hole formation by incoming electromagnetic radiation

- Physics
- 2014

I revisit a known solution of the Einstein field equations to show that it describes the formation of non-spherical black holes by the collapse of pure electromagnetic monochromatic radiation. Both…

Cosmological structure formation with negative mass

- PhysicsPhysical Review D
- 2018

We construct a family of models with negative gravitational mass in the context of Newtonian gravity. We focus, in particular, on a model that reproduces the features of the so-called Dirac-Milne…

On negative mass in inflating universes1

- Physics
- 2015

We consider negative mass solutions in inflating universes. These universes correspond to asymptotically de Sitter space–times. We show that negative mass makes perfect physical sense and could be ...

A unifying theory of dark energy and dark matter: Negative masses and matter creation within a modified ΛCDM framework

- PhysicsAstronomy & Astrophysics
- 2018

Dark energy and dark matter constitute 95% of the observable Universe. Yet the physical nature of these two phenomena remains a mystery. Einstein suggested a long-forgotten solution: gravitationally…

Quartic time-dependent oscillatons

- Physics
- 2017

In this paper, we will study some properties of oscillaton, spherically symmetric object made of a real time-dependent scalar field, Using a self- interaction quartic scalar potential instead of a…

Quantum effects in topological and Schwarzschild de Sitter brane: Aspects of torsion on $(D\!{\bar D})_4$-brane

- Physics
- 2014

We investigate an effective torsion curvature in a second-order formalism underlying a two-form world-volume dynamics in a D5-brane. In particular, we consider the two form in presence of a…

Gravity, antimatter and the Dirac-Milne universe

- PhysicsHyperfine Interactions
- 2018

We review the main arguments against antigravity, a different acceleration of antimatter relative to matter in a gravitational field, discussing and challenging Morrison’s, Good’s and Schiff’s…

## References

SHOWING 1-5 OF 5 REFERENCES

Gravitation and cosmology with York time

- Physics
- 2016

[Shortened abstract:] In this thesis we investigate a solution to the `problem of time' in canonical quantum gravity by splitting spacetime into surfaces of constant mean curvature parameterised by…

The Large Scale Structure of Space-Time

- Physics
- 1973

The theory of the causal structure of a general space-time is developed, and is used to study black holes and to prove a number of theorems establishing the inevitability of singualarities under certain conditions.

Ann

- Psychology
- 2005

Aaron Beck’s cognitive therapy model has been used repeatedly to treat depression and anxiety. The case presented here is a 34-year-old female law student with an adjustment disorder with mixed…

Sitzung

- König. Preuss. Akad. Wiss. 7 189–196,
- 1916

Commun

- Math. Phys. 65, 45 (1979), Commun. Math. Phys. 79, 231 (1981); E. Witten, Commun. Math. Phys. 80, 381
- 1981