Energy conditions in modified gravity

We consider generalized energy conditions in modified theories of gravity by taking into account the further degrees of freedom related to scalar fields and curvature invariants. The latter are usually recast as generalized geometrical fluids that have different meanings with respect to the standard...

Full description

Saved in:
Bibliographic Details
Published in:Physics letters. B 2014-03, Vol.730, p.280-283
Main Authors: Capozziello, Salvatore, Lobo, Francisco S.N., Mimoso, José P.
Format: Article
Language:English
Subjects:
Curvature
Energy (nuclear)
Fluid dynamics
Fluid flow
Fluids
Gravitation
Mathematical analysis
Tensors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c393t-168ab27689d1839bdf01d01d102ebbd86902ed68117b601bf3de0b2cf1c6ac3a3
cites cdi_FETCH-LOGICAL-c393t-168ab27689d1839bdf01d01d102ebbd86902ed68117b601bf3de0b2cf1c6ac3a3
container_end_page 283
container_issue
container_start_page 280
container_title Physics letters. B
container_volume 730
creator Capozziello, Salvatore
Lobo, Francisco S.N.
Mimoso, José P.
description We consider generalized energy conditions in modified theories of gravity by taking into account the further degrees of freedom related to scalar fields and curvature invariants. The latter are usually recast as generalized geometrical fluids that have different meanings with respect to the standard matter fluids generally adopted as sources of the field equations. More specifically, in modified gravity the curvature terms are grouped in a tensor Hab and a coupling g(Ψi) that can be reorganized in effective Einstein field equations, as corrections to the energy–momentum tensor of matter. The formal validity of such inequalities does not assure some basic requirements such as the attractive nature of gravity, so that the energy conditions have to be considered in a wider sense.
doi_str_mv 10.1016/j.physletb.2014.01.066
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1671569069</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0370269314000884</els_id><sourcerecordid>1671569069</sourcerecordid><originalsourceid>FETCH-LOGICAL-c393t-168ab27689d1839bdf01d01d102ebbd86902ed68117b601bf3de0b2cf1c6ac3a3</originalsourceid><addsrcrecordid>eNqFkE1Lw0AQhhdRsFb_guQieEmcybab5KaU-gEFL3pe9mNSt6TZupsW8u_dUj0LAzOHeR94H8ZuEQoEFA-bYvc1xo4GXZSAswKwACHO2ATriuflbDY_ZxPgFeSlaPglu4pxAwA4BzFhd8uewnrMjO-tG5zvY-b6bOutax3ZbB3UwQ3jNbtoVRfp5ndP2efz8mPxmq_eX94WT6vc8IYPOYpa6bISdWOx5o22LaBNg1CS1rYWTTqsqBErLQB1yy2BLk2LRijDFZ-y-xN3F_z3nuIgty4a6jrVk99HiaLCeaKkHlMmTq8m-BgDtXIX3FaFUSLIoxe5kX9e5NGLBJTJSwo-noKUihwcBRmNo96QdYHMIK13_yF-AGo5btw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1671569069</pqid></control><display><type>article</type><title>Energy conditions in modified gravity</title><source>ScienceDirect Journals</source><creator>Capozziello, Salvatore ; Lobo, Francisco S.N. ; Mimoso, José P.</creator><creatorcontrib>Capozziello, Salvatore ; Lobo, Francisco S.N. ; Mimoso, José P.</creatorcontrib><description>We consider generalized energy conditions in modified theories of gravity by taking into account the further degrees of freedom related to scalar fields and curvature invariants. The latter are usually recast as generalized geometrical fluids that have different meanings with respect to the standard matter fluids generally adopted as sources of the field equations. More specifically, in modified gravity the curvature terms are grouped in a tensor Hab and a coupling g(Ψi) that can be reorganized in effective Einstein field equations, as corrections to the energy–momentum tensor of matter. The formal validity of such inequalities does not assure some basic requirements such as the attractive nature of gravity, so that the energy conditions have to be considered in a wider sense.</description><identifier>ISSN: 0370-2693</identifier><identifier>EISSN: 1873-2445</identifier><identifier>DOI: 10.1016/j.physletb.2014.01.066</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Curvature ; Energy (nuclear) ; Fluid dynamics ; Fluid flow ; Fluids ; Gravitation ; Mathematical analysis ; Tensors</subject><ispartof>Physics letters. B, 2014-03, Vol.730, p.280-283</ispartof><rights>2014 The Authors</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c393t-168ab27689d1839bdf01d01d102ebbd86902ed68117b601bf3de0b2cf1c6ac3a3</citedby><cites>FETCH-LOGICAL-c393t-168ab27689d1839bdf01d01d102ebbd86902ed68117b601bf3de0b2cf1c6ac3a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0370269314000884$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,3548,27923,27924,45779</link.rule.ids></links><search><creatorcontrib>Capozziello, Salvatore</creatorcontrib><creatorcontrib>Lobo, Francisco S.N.</creatorcontrib><creatorcontrib>Mimoso, José P.</creatorcontrib><title>Energy conditions in modified gravity</title><title>Physics letters. B</title><description>We consider generalized energy conditions in modified theories of gravity by taking into account the further degrees of freedom related to scalar fields and curvature invariants. The latter are usually recast as generalized geometrical fluids that have different meanings with respect to the standard matter fluids generally adopted as sources of the field equations. More specifically, in modified gravity the curvature terms are grouped in a tensor Hab and a coupling g(Ψi) that can be reorganized in effective Einstein field equations, as corrections to the energy–momentum tensor of matter. The formal validity of such inequalities does not assure some basic requirements such as the attractive nature of gravity, so that the energy conditions have to be considered in a wider sense.</description><subject>Curvature</subject><subject>Energy (nuclear)</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Fluids</subject><subject>Gravitation</subject><subject>Mathematical analysis</subject><subject>Tensors</subject><issn>0370-2693</issn><issn>1873-2445</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFkE1Lw0AQhhdRsFb_guQieEmcybab5KaU-gEFL3pe9mNSt6TZupsW8u_dUj0LAzOHeR94H8ZuEQoEFA-bYvc1xo4GXZSAswKwACHO2ATriuflbDY_ZxPgFeSlaPglu4pxAwA4BzFhd8uewnrMjO-tG5zvY-b6bOutax3ZbB3UwQ3jNbtoVRfp5ndP2efz8mPxmq_eX94WT6vc8IYPOYpa6bISdWOx5o22LaBNg1CS1rYWTTqsqBErLQB1yy2BLk2LRijDFZ-y-xN3F_z3nuIgty4a6jrVk99HiaLCeaKkHlMmTq8m-BgDtXIX3FaFUSLIoxe5kX9e5NGLBJTJSwo-noKUihwcBRmNo96QdYHMIK13_yF-AGo5btw</recordid><startdate>20140307</startdate><enddate>20140307</enddate><creator>Capozziello, Salvatore</creator><creator>Lobo, Francisco S.N.</creator><creator>Mimoso, José P.</creator><general>Elsevier B.V</general><scope>6I.</scope><scope>AAFTH</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20140307</creationdate><title>Energy conditions in modified gravity</title><author>Capozziello, Salvatore ; Lobo, Francisco S.N. ; Mimoso, José P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-168ab27689d1839bdf01d01d102ebbd86902ed68117b601bf3de0b2cf1c6ac3a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Curvature</topic><topic>Energy (nuclear)</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>Fluids</topic><topic>Gravitation</topic><topic>Mathematical analysis</topic><topic>Tensors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Capozziello, Salvatore</creatorcontrib><creatorcontrib>Lobo, Francisco S.N.</creatorcontrib><creatorcontrib>Mimoso, José P.</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physics letters. B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Capozziello, Salvatore</au><au>Lobo, Francisco S.N.</au><au>Mimoso, José P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Energy conditions in modified gravity</atitle><jtitle>Physics letters. B</jtitle><date>2014-03-07</date><risdate>2014</risdate><volume>730</volume><spage>280</spage><epage>283</epage><pages>280-283</pages><issn>0370-2693</issn><eissn>1873-2445</eissn><abstract>We consider generalized energy conditions in modified theories of gravity by taking into account the further degrees of freedom related to scalar fields and curvature invariants. The latter are usually recast as generalized geometrical fluids that have different meanings with respect to the standard matter fluids generally adopted as sources of the field equations. More specifically, in modified gravity the curvature terms are grouped in a tensor Hab and a coupling g(Ψi) that can be reorganized in effective Einstein field equations, as corrections to the energy–momentum tensor of matter. The formal validity of such inequalities does not assure some basic requirements such as the attractive nature of gravity, so that the energy conditions have to be considered in a wider sense.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.physletb.2014.01.066</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0370-2693
ispartof Physics letters. B, 2014-03, Vol.730, p.280-283
issn 0370-2693
1873-2445
language eng
recordid cdi_proquest_miscellaneous_1671569069
source ScienceDirect Journals
subjects Curvature
Energy (nuclear)
Fluid dynamics
Fluid flow
Fluids
Gravitation
Mathematical analysis
Tensors
title Energy conditions in modified gravity
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-08T18%3A33%3A35IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Energy%20conditions%20in%20modified%20gravity&rft.jtitle=Physics%20letters.%20B&rft.au=Capozziello,%20Salvatore&rft.date=2014-03-07&rft.volume=730&rft.spage=280&rft.epage=283&rft.pages=280-283&rft.issn=0370-2693&rft.eissn=1873-2445&rft_id=info:doi/10.1016/j.physletb.2014.01.066&rft_dat=%3Cproquest_cross%3E1671569069%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c393t-168ab27689d1839bdf01d01d102ebbd86902ed68117b601bf3de0b2cf1c6ac3a3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1671569069&rft_id=info:pmid/&rfr_iscdi=true