DECOHERENCE IN QUANTUM COSMOLOGY AND THE COSMOLOGICAL CONSTANT-Reference-Cited by-同舟云学术

DECOHERENCE IN QUANTUM COSMOLOGY AND THE COSMOLOGICAL CONSTANT

Published:2013-10-17 Issue:34 Volume:28 Page:1350158
ISSN:0217-7323
Container-title:Modern Physics Letters A
language:en
Short-container-title:Mod. Phys. Lett. A

Author:

ASSELMEYER-MALUGA TORSTEN¹,KRÓL JERZY²

Affiliation:

1. German Aerospace Center, Berlin and Loyola University, New Orleans, LA, USA

2. Institute of Physics, University of Silesia, ul. Uniwesytecka 4, 40-007 Katowice, Poland

Abstract

We discuss a spacetime having the topology of S3×ℝ but with a different smoothness structure. The initial state of the cosmos in our model is identified with a wildly embedded 3-sphere (or a fractal space). In previous work we showed that a wild embedding is obtained by a quantization of a usual (or tame) embedding. Then a wild embedding can be identified with a (geometrical) quantum state. During a decoherence process this wild 3-sphere is changed to a homology 3-sphere. We are able to calculate the decoherence time for this process. After the formation of the homology 3-sphere, we obtain a spacetime with an accelerated expansion enforced by a cosmological constant. The calculation of this cosmological constant gives a qualitative agreement with the current measured value.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217732313501587

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