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dc.contributor.authorMelia, Fulvio
dc.date.accessioned2022-04-04T21:40:53Z
dc.date.available2022-04-04T21:40:53Z
dc.date.issued2022-02-28
dc.identifier.citationMelia, F. (2022). The seemingly preferred cosmic frame. Physica Scripta.en_US
dc.identifier.issn0031-8949
dc.identifier.doi10.1088/1402-4896/ac5666
dc.identifier.urihttp://hdl.handle.net/10150/663876
dc.description.abstractThe Universe appears to have a 'preferred' frame of reference, within which the cosmic microwave background is completely isotropic. Earth's motion through this relic radiation field is measurable, and some have viewed this type of observation as a possible contradiction of Einstein's principle of relativity. Several experiments have been proposed (and some have been carried out) to test for violations of Lorentz invariance when transforming out of this background frame, e.g., based on expected velocity differences in a Michelson-Morley type of probe. But what exactly is this cosmic frame? Is it truly an absolute frame attached to the Universe, or is it an observer-dependent construction? Such possibilities represent very different Physics, of course. In this paper, we work through these issues carefully, without the introduction of unsubstantiated assumptions. We show that the preferred frames originate through general (not special) relativity, and are indeed observer-dependent. Their existence does not at all conflict with Einstein's fundamental hypothesis of special relativity.en_US
dc.language.isoenen_US
dc.publisherIOP Publishingen_US
dc.rights© 2022 IOP Publishing Ltd.en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en_US
dc.subjectcosmologyen_US
dc.subjectgeneral relativityen_US
dc.subjectobservational cosmologyen_US
dc.titleThe seemingly preferred cosmic frameen_US
dc.typeArticleen_US
dc.identifier.eissn1402-4896
dc.contributor.departmentDepartment of Physics, Applied Math Program, University of Arizonaen_US
dc.identifier.journalPhysica Scriptaen_US
dc.description.note12 month embargo; published: 28 February 2022en_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal accepted manuscripten_US
dc.source.journaltitlePhysica Scripta
dc.source.volume97
dc.source.issue4
dc.source.beginpage045001


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