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The case for a Casimir cosmology.

Ulf Leonhardt1

  • 1Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 7610001, Israel.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|July 21, 2020
PubMed
Summary
This summary is machine-generated.

Lifshitz theory, using vacuum fluctuations and the Casimir effect, successfully calculated the cosmological constant. This approach offers a new perspective on dark energy without complex physics.

Keywords:
Casimir forcesdark energydielectricsvacuum fluctuations

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Area of Science:

  • Cosmology
  • Quantum Field Theory
  • Analogue Gravity

Background:

  • The cosmological constant (dark energy) is theorized to arise from vacuum fluctuations, but naive calculations yield incorrect magnitudes.
  • The Casimir effect demonstrates vacuum fluctuations causing forces in dielectric media, accurately described by Lifshitz theory.

Purpose of the Study:

  • To discuss the empirical evidence and theoretical basis of the Lifshitz theory for the cosmological constant.
  • To present a novel calculation of the cosmological constant using Lifshitz theory, analogous to dielectric media.

Main Methods:

  • Utilizing the analogy between geometries and dielectric media.
  • Applying Lifshitz theory to calculate vacuum energy effects.

Main Results:

  • A cosmological constant of the correct order of magnitude was calculated using Lifshitz theory.
  • The calculation provides a potential explanation for dark energy through vacuum fluctuations.

Conclusions:

  • Lifshitz theory offers a viable framework for understanding the cosmological constant.
  • This approach simplifies the complex topic of dark energy for broader accessibility.