Fine tuning and MOND in a metamaterial “multiverse”

Abstract We consider the recently suggested model of a multiverse based on a ferrofluid. When the ferrofluid is subjected to a modest external magnetic field, the nanoparticles inside the ferrofluid form small hyperbolic metamaterial domains, which from the electromagnetic standpoint behave as indiv...

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Main Authors:	Igor I. Smolyaninov, Vera N. Smolyaninova
Format:	article
Language:	EN
Published:	Nature Portfolio 2017
Subjects:	Medicine R Science Q
Online Access:	https://doaj.org/article/00da35c6178c4e1e9f1660c974ba91f4
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id	oai:doaj.org-article:00da35c6178c4e1e9f1660c974ba91f4
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spelling	oai:doaj.org-article:00da35c6178c4e1e9f1660c974ba91f42021-12-02T12:32:00ZFine tuning and MOND in a metamaterial “multiverse”10.1038/s41598-017-08605-72045-2322https://doaj.org/article/00da35c6178c4e1e9f1660c974ba91f42017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08605-7https://doaj.org/toc/2045-2322Abstract We consider the recently suggested model of a multiverse based on a ferrofluid. When the ferrofluid is subjected to a modest external magnetic field, the nanoparticles inside the ferrofluid form small hyperbolic metamaterial domains, which from the electromagnetic standpoint behave as individual “Minkowski universes” exhibiting different “laws of physics”, such as different strength of effective gravity, different versions of modified Newtonian dynamics (MOND) and different radiation lifetimes. When the ferrofluid “multiverse” is populated with atomic or molecular species, and these species are excited using an external laser source, the radiation lifetimes of atoms and molecules in these “universes” depend strongly on the individual physical properties of each “universe” via the Purcell effect. Some “universes” are better fine-tuned than others to sustain the excited states of these species. Thus, the ferrofluid-based metamaterial “multiverse” may be used to study models of MOND and to illustrate the fine-tuning mechanism in cosmology.Igor I. SmolyaninovVera N. SmolyaninovaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Igor I. Smolyaninov Vera N. Smolyaninova Fine tuning and MOND in a metamaterial “multiverse”
description	Abstract We consider the recently suggested model of a multiverse based on a ferrofluid. When the ferrofluid is subjected to a modest external magnetic field, the nanoparticles inside the ferrofluid form small hyperbolic metamaterial domains, which from the electromagnetic standpoint behave as individual “Minkowski universes” exhibiting different “laws of physics”, such as different strength of effective gravity, different versions of modified Newtonian dynamics (MOND) and different radiation lifetimes. When the ferrofluid “multiverse” is populated with atomic or molecular species, and these species are excited using an external laser source, the radiation lifetimes of atoms and molecules in these “universes” depend strongly on the individual physical properties of each “universe” via the Purcell effect. Some “universes” are better fine-tuned than others to sustain the excited states of these species. Thus, the ferrofluid-based metamaterial “multiverse” may be used to study models of MOND and to illustrate the fine-tuning mechanism in cosmology.
format	article
author	Igor I. Smolyaninov Vera N. Smolyaninova
author_facet	Igor I. Smolyaninov Vera N. Smolyaninova
author_sort	Igor I. Smolyaninov
title	Fine tuning and MOND in a metamaterial “multiverse”
title_short	Fine tuning and MOND in a metamaterial “multiverse”
title_full	Fine tuning and MOND in a metamaterial “multiverse”
title_fullStr	Fine tuning and MOND in a metamaterial “multiverse”
title_full_unstemmed	Fine tuning and MOND in a metamaterial “multiverse”
title_sort	fine tuning and mond in a metamaterial “multiverse”
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/00da35c6178c4e1e9f1660c974ba91f4
work_keys_str_mv	AT igorismolyaninov finetuningandmondinametamaterialmultiverse AT veransmolyaninova finetuningandmondinametamaterialmultiverse
_version_	1718394196668186624

Fine tuning and MOND in a metamaterial “multiverse”

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