El éter relativista: un cambio conceptual inconcluso

Abstract

La posición inicial de Einstein con respecto al éter electromagnético y su posterior eliminación del escenario de la relatividad especial resultaron profundamente alteradas por la relatividad general. En este artículo analizamos los diferentes argumentos de Einstein contra el éter electromagnético. Luego estudiamos las razones que lo llevaron a reintroducir el éter gravitatorio en la relatividad general. Después de comparar las propiedades y funciones del antiguo éter con las del nuevo éter relativista, concluimos que se ha producido un cambio conceptual y que el término “éter” ha experimentado un cambio de significado. No obstante, mostramos que el nuevo éter retuvo algunas de las propiedades y funciones características del viejo éter electromagnético.

Modelos sin target

“…As far as we know, a model of a three-sex population on the Earth planet does not denote anything real, but we cannot be sure that there are no three-sex 13 A detailed account of Einstein's conception of the ether is given by Kostro (2000). See also Cassini and Levinas (2009) for a philosophical discussion of the same issue. All translations of Einstein's works are taken from the edition of his collected papers (Einstein, 1989(Einstein, -2015.…”

Is Gravity, The Curvature of Spacetime or A Quantum Phenomenon?

“…Einstein after that published the final version of the general relativity (Einstein, 1916), where according to general covariance, he exposed spacetime´s concept relationist, i.e, as relational ideal geometric object, completely lack of physical properties, but in June of that year, he changed unexpectedly at a interchange of letters with Lorentz, identifying spacetime with the relativistic aether, a new concept of gravitational relativist aether, totally strange to electromagnetic aether that he had rejected, this hipothesis was presented formally in 1918 (Cassini and Levinas, 2009).…”

“…Einstein identified the gravitational aether with the static gravitational field and this field with the spacetime that he called the metric field... of who arises physical properties (Cassini and Levinas, 2009). In this context the author observes superfluous the word aether.…”

“…The scientists changed the concept of aether by the concept of field, used currently. Einstein abandoned the concept of aether in 1938 (Cassini and Levinas, 2009).…”