The cosmological constant as event horizon

Enrique Gaztanaga

doi:10.3390/sym14020300

The cosmological constant as event horizon

Enrique Gaztanaga^*

^*Corresponding author for this work

Institute of Cosmology & Gravitation

Research output: Contribution to journal › Article › peer-review

80 Downloads (Pure)

Abstract

General Relativity allows for a cosmological constant (Ʌ) which has inspired models of cosmic Inflation and Dark Energy. We show instead that r_Ʌ = √3/ Ʌ corresponds to an event horizon: A causal boundary term in the action. Our Universe is expanding inside its Schwarzschild radius r_S = r_L = 2GM, which could have originated from a uniform free falling cloud of mass M that collapsed as a Black Hole (BH) 25 Gyrs ago. Such a BH Universe allows for large-scale structure formation without the need of Inflation or Dark Energy.

Original language	English
Article number	300
Number of pages	8
Journal	Symmetry
Volume	14
Issue number	2
DOIs	https://doi.org/10.3390/sym14020300
Publication status	Published - 1 Feb 2022

Keywords

Black holes
Cosmology
Dark energy
General relativity

Access to Document

10.3390/sym14020300

The cosmological constant as event horizonFinal published version, 499 KBLicence: CC BY

Cite this

@article{7885893d1e1b4f5abb8bf780c4e37efb,

title = "The cosmological constant as event horizon",

abstract = "General Relativity allows for a cosmological constant (Ʌ) which has inspired models of cosmic Inflation and Dark Energy. We show instead that rɅ = √3/ Ʌ corresponds to an event horizon: A causal boundary term in the action. Our Universe is expanding inside its Schwarzschild radius rS = rL = 2GM, which could have originated from a uniform free falling cloud of mass M that collapsed as a Black Hole (BH) 25 Gyrs ago. Such a BH Universe allows for large-scale structure formation without the need of Inflation or Dark Energy.",

keywords = "Black holes, Cosmology, Dark energy, General relativity",

author = "Enrique Gaztanaga",

note = "Funding Information: Funding: This work has been supported by Spanish MINECO grants PGC2018-102021-B-100 and EU grants LACEGAL 734374 and EWC 776247 with ERDF funds. IEEC is funded by Generalitat de Catalunya. Publisher Copyright: {\textcopyright} 2022 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2022",

month = feb,

day = "1",

doi = "10.3390/sym14020300",

language = "English",

volume = "14",

journal = "Symmetry",

issn = "2073-8994",

publisher = "MDPI",

number = "2",

}

TY - JOUR

T1 - The cosmological constant as event horizon

AU - Gaztanaga, Enrique

N1 - Funding Information: Funding: This work has been supported by Spanish MINECO grants PGC2018-102021-B-100 and EU grants LACEGAL 734374 and EWC 776247 with ERDF funds. IEEC is funded by Generalitat de Catalunya. Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2022/2/1

Y1 - 2022/2/1

N2 - General Relativity allows for a cosmological constant (Ʌ) which has inspired models of cosmic Inflation and Dark Energy. We show instead that rɅ = √3/ Ʌ corresponds to an event horizon: A causal boundary term in the action. Our Universe is expanding inside its Schwarzschild radius rS = rL = 2GM, which could have originated from a uniform free falling cloud of mass M that collapsed as a Black Hole (BH) 25 Gyrs ago. Such a BH Universe allows for large-scale structure formation without the need of Inflation or Dark Energy.

AB - General Relativity allows for a cosmological constant (Ʌ) which has inspired models of cosmic Inflation and Dark Energy. We show instead that rɅ = √3/ Ʌ corresponds to an event horizon: A causal boundary term in the action. Our Universe is expanding inside its Schwarzschild radius rS = rL = 2GM, which could have originated from a uniform free falling cloud of mass M that collapsed as a Black Hole (BH) 25 Gyrs ago. Such a BH Universe allows for large-scale structure formation without the need of Inflation or Dark Energy.

KW - Black holes

KW - Cosmology

KW - Dark energy

KW - General relativity

UR - https://www.scopus.com/pages/publications/85124458464

U2 - 10.3390/sym14020300

DO - 10.3390/sym14020300

M3 - Article

AN - SCOPUS:85124458464

SN - 2073-8994

VL - 14

JO - Symmetry

JF - Symmetry

IS - 2

M1 - 300

ER -

The cosmological constant as event horizon

Abstract

Keywords

Access to Document

Fingerprint

Cite this