Turnaround in cyclic cosmology
It is speculated how dark energy in a brane world can help reconcile an infinitely cyclic cosmology with the second law of thermodynamics. A cyclic model is described, in which dark energy with w
Gespeichert in:
Veröffentlicht in: | Physical review letters 2007-02, Vol.98 (7), p.071301-071301, Article 071301 |
---|---|
Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 071301 |
---|---|
container_issue | 7 |
container_start_page | 071301 |
container_title | Physical review letters |
container_volume | 98 |
creator | Baum, Lauris Frampton, Paul H |
description | It is speculated how dark energy in a brane world can help reconcile an infinitely cyclic cosmology with the second law of thermodynamics. A cyclic model is described, in which dark energy with w |
doi_str_mv | 10.1103/PhysRevLett.98.071301 |
format | Article |
fullrecord | <record><control><sourceid>proquest_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_20955462</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>70270251</sourcerecordid><originalsourceid>FETCH-LOGICAL-c382t-b7705dd9f723bb92451fae94de0bd6bb6ce6cf19c10fb6ad4e6e2095632c5cf93</originalsourceid><addsrcrecordid>eNpNkF1LwzAUhoMobk5_gmMgeNd5TtI0y6UMv2CgyLwOzWnqKm0zm1bov7ejA4UD783zvgcexq4Rlogg7t52fXh3PxvXtku9WoJCAXjCpghKRwoxPmVTAIGRBlATdhHCFwAgT1bnbIJKSA0YT9l82zV12viuzhZFvaCeyoIW5EPlS__ZX7KzPC2DuzrmjH08PmzXz9Hm9ellfb-JSKx4G1mlQGaZzhUX1moeS8xTp-PMgc0SaxNyCeWoCSG3SZrFLnEctEwEJ0m5FjN2M-760BYmUNE62pGva0etOZAyTvhA3Y7UvvHfnQutqYpArizT2vkuGAV8OIkDKEeQGh9C43Kzb4oqbXqDYA76zD99Rq_MqG_ozY8POlu57K919CV-AVj5bXg</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>70270251</pqid></control><display><type>article</type><title>Turnaround in cyclic cosmology</title><source>American Physical Society Journals</source><creator>Baum, Lauris ; Frampton, Paul H</creator><creatorcontrib>Baum, Lauris ; Frampton, Paul H</creatorcontrib><description>It is speculated how dark energy in a brane world can help reconcile an infinitely cyclic cosmology with the second law of thermodynamics. A cyclic model is described, in which dark energy with w<-1 equation of state leads to a turnaround at a time, extremely shortly before the would-be big rip, at which both volume and entropy of our Universe decrease by a gigantic factor, while very many independent similarly small contracting universes are spawned. The entropy of our model decreases almost to zero at turnaround but increases for the remainder of the cycle by a vanishingly small amount during contraction, empty of matter, then by a large factor during inflationary expansion.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.98.071301</identifier><identifier>PMID: 17359014</identifier><language>eng</language><publisher>United States</publisher><subject>BRANES ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; CONTRACTION ; COSMOLOGICAL MODELS ; COSMOLOGY ; ENTROPY ; EQUATIONS OF STATE ; EXPANSION ; NONLUMINOUS MATTER ; STRING THEORY ; THERMODYNAMICS ; UNIVERSE</subject><ispartof>Physical review letters, 2007-02, Vol.98 (7), p.071301-071301, Article 071301</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c382t-b7705dd9f723bb92451fae94de0bd6bb6ce6cf19c10fb6ad4e6e2095632c5cf93</citedby><cites>FETCH-LOGICAL-c382t-b7705dd9f723bb92451fae94de0bd6bb6ce6cf19c10fb6ad4e6e2095632c5cf93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,777,781,882,2863,2864,27905,27906</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17359014$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/20955462$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Baum, Lauris</creatorcontrib><creatorcontrib>Frampton, Paul H</creatorcontrib><title>Turnaround in cyclic cosmology</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>It is speculated how dark energy in a brane world can help reconcile an infinitely cyclic cosmology with the second law of thermodynamics. A cyclic model is described, in which dark energy with w<-1 equation of state leads to a turnaround at a time, extremely shortly before the would-be big rip, at which both volume and entropy of our Universe decrease by a gigantic factor, while very many independent similarly small contracting universes are spawned. The entropy of our model decreases almost to zero at turnaround but increases for the remainder of the cycle by a vanishingly small amount during contraction, empty of matter, then by a large factor during inflationary expansion.</description><subject>BRANES</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>CONTRACTION</subject><subject>COSMOLOGICAL MODELS</subject><subject>COSMOLOGY</subject><subject>ENTROPY</subject><subject>EQUATIONS OF STATE</subject><subject>EXPANSION</subject><subject>NONLUMINOUS MATTER</subject><subject>STRING THEORY</subject><subject>THERMODYNAMICS</subject><subject>UNIVERSE</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNpNkF1LwzAUhoMobk5_gmMgeNd5TtI0y6UMv2CgyLwOzWnqKm0zm1bov7ejA4UD783zvgcexq4Rlogg7t52fXh3PxvXtku9WoJCAXjCpghKRwoxPmVTAIGRBlATdhHCFwAgT1bnbIJKSA0YT9l82zV12viuzhZFvaCeyoIW5EPlS__ZX7KzPC2DuzrmjH08PmzXz9Hm9ellfb-JSKx4G1mlQGaZzhUX1moeS8xTp-PMgc0SaxNyCeWoCSG3SZrFLnEctEwEJ0m5FjN2M-760BYmUNE62pGva0etOZAyTvhA3Y7UvvHfnQutqYpArizT2vkuGAV8OIkDKEeQGh9C43Kzb4oqbXqDYA76zD99Rq_MqG_ozY8POlu57K919CV-AVj5bXg</recordid><startdate>20070216</startdate><enddate>20070216</enddate><creator>Baum, Lauris</creator><creator>Frampton, Paul H</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20070216</creationdate><title>Turnaround in cyclic cosmology</title><author>Baum, Lauris ; Frampton, Paul H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c382t-b7705dd9f723bb92451fae94de0bd6bb6ce6cf19c10fb6ad4e6e2095632c5cf93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>BRANES</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>CONTRACTION</topic><topic>COSMOLOGICAL MODELS</topic><topic>COSMOLOGY</topic><topic>ENTROPY</topic><topic>EQUATIONS OF STATE</topic><topic>EXPANSION</topic><topic>NONLUMINOUS MATTER</topic><topic>STRING THEORY</topic><topic>THERMODYNAMICS</topic><topic>UNIVERSE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Baum, Lauris</creatorcontrib><creatorcontrib>Frampton, Paul H</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Baum, Lauris</au><au>Frampton, Paul H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Turnaround in cyclic cosmology</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2007-02-16</date><risdate>2007</risdate><volume>98</volume><issue>7</issue><spage>071301</spage><epage>071301</epage><pages>071301-071301</pages><artnum>071301</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>It is speculated how dark energy in a brane world can help reconcile an infinitely cyclic cosmology with the second law of thermodynamics. A cyclic model is described, in which dark energy with w<-1 equation of state leads to a turnaround at a time, extremely shortly before the would-be big rip, at which both volume and entropy of our Universe decrease by a gigantic factor, while very many independent similarly small contracting universes are spawned. The entropy of our model decreases almost to zero at turnaround but increases for the remainder of the cycle by a vanishingly small amount during contraction, empty of matter, then by a large factor during inflationary expansion.</abstract><cop>United States</cop><pmid>17359014</pmid><doi>10.1103/PhysRevLett.98.071301</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0031-9007 |
ispartof | Physical review letters, 2007-02, Vol.98 (7), p.071301-071301, Article 071301 |
issn | 0031-9007 1079-7114 |
language | eng |
recordid | cdi_osti_scitechconnect_20955462 |
source | American Physical Society Journals |
subjects | BRANES CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS CONTRACTION COSMOLOGICAL MODELS COSMOLOGY ENTROPY EQUATIONS OF STATE EXPANSION NONLUMINOUS MATTER STRING THEORY THERMODYNAMICS UNIVERSE |
title | Turnaround in cyclic cosmology |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-20T06%3A18%3A07IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Turnaround%20in%20cyclic%20cosmology&rft.jtitle=Physical%20review%20letters&rft.au=Baum,%20Lauris&rft.date=2007-02-16&rft.volume=98&rft.issue=7&rft.spage=071301&rft.epage=071301&rft.pages=071301-071301&rft.artnum=071301&rft.issn=0031-9007&rft.eissn=1079-7114&rft_id=info:doi/10.1103/PhysRevLett.98.071301&rft_dat=%3Cproquest_osti_%3E70270251%3C/proquest_osti_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=70270251&rft_id=info:pmid/17359014&rfr_iscdi=true |