全息暗能量支持的可穿越虫洞与修改后的状态方程

IF 2.5 3区 物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS
Remo Garattini , Phongpichit Channuie
{"title":"全息暗能量支持的可穿越虫洞与修改后的状态方程","authors":"Remo Garattini ,&nbsp;Phongpichit Channuie","doi":"10.1016/j.nuclphysb.2024.116589","DOIUrl":null,"url":null,"abstract":"<div><p>Inspired by holographic dark energy models, we explore various energy density profiles as potential sources for creating traversable wormholes. Because these energy densities are all positive, we introduce an equation of state in the form <span><math><msub><mrow><mi>p</mi></mrow><mrow><mi>r</mi></mrow></msub><mo>(</mo><mi>r</mi><mo>)</mo><mo>=</mo><msub><mrow><mi>ω</mi></mrow><mrow><mi>r</mi></mrow></msub><mrow><mo>(</mo><mi>r</mi><mo>)</mo></mrow><mi>ρ</mi><mo>(</mo><mi>r</mi><mo>)</mo></math></span>. We find that achieving Zero Tidal Forces requires <span><math><msub><mrow><mi>ω</mi></mrow><mrow><mi>r</mi></mrow></msub><mrow><mo>(</mo><mi>r</mi><mo>)</mo></mrow></math></span> to become infinite as <em>r</em> approaches infinity. To solve this issue, we introduce appropriate modifications on the function <span><math><msub><mrow><mi>ω</mi></mrow><mrow><mi>r</mi></mrow></msub><mo>(</mo><mi>r</mi><mo>)</mo></math></span> in such a way to obtain a finite result everywhere. These modifications do not affect the behavior of the equation of state near the wormhole's throat. Surprisingly, all dark energy profiles end up in the phantom region. Among the profiles we consider, only one does not require changes to <span><math><msub><mrow><mi>ω</mi></mrow><mrow><mi>r</mi></mrow></msub><mrow><mo>(</mo><mi>r</mi><mo>)</mo></mrow></math></span> to achieve Zero Tidal Forces. This profile is also consistent with the presence of a Global Monopole.</p></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S055032132400155X/pdfft?md5=7643ed2a5c13db0156720b66a8eaf9b2&pid=1-s2.0-S055032132400155X-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Traversable wormholes supported by holographic dark energy with a modified equation of state\",\"authors\":\"Remo Garattini ,&nbsp;Phongpichit Channuie\",\"doi\":\"10.1016/j.nuclphysb.2024.116589\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Inspired by holographic dark energy models, we explore various energy density profiles as potential sources for creating traversable wormholes. Because these energy densities are all positive, we introduce an equation of state in the form <span><math><msub><mrow><mi>p</mi></mrow><mrow><mi>r</mi></mrow></msub><mo>(</mo><mi>r</mi><mo>)</mo><mo>=</mo><msub><mrow><mi>ω</mi></mrow><mrow><mi>r</mi></mrow></msub><mrow><mo>(</mo><mi>r</mi><mo>)</mo></mrow><mi>ρ</mi><mo>(</mo><mi>r</mi><mo>)</mo></math></span>. We find that achieving Zero Tidal Forces requires <span><math><msub><mrow><mi>ω</mi></mrow><mrow><mi>r</mi></mrow></msub><mrow><mo>(</mo><mi>r</mi><mo>)</mo></mrow></math></span> to become infinite as <em>r</em> approaches infinity. To solve this issue, we introduce appropriate modifications on the function <span><math><msub><mrow><mi>ω</mi></mrow><mrow><mi>r</mi></mrow></msub><mo>(</mo><mi>r</mi><mo>)</mo></math></span> in such a way to obtain a finite result everywhere. These modifications do not affect the behavior of the equation of state near the wormhole's throat. Surprisingly, all dark energy profiles end up in the phantom region. Among the profiles we consider, only one does not require changes to <span><math><msub><mrow><mi>ω</mi></mrow><mrow><mi>r</mi></mrow></msub><mrow><mo>(</mo><mi>r</mi><mo>)</mo></mrow></math></span> to achieve Zero Tidal Forces. This profile is also consistent with the presence of a Global Monopole.</p></div>\",\"PeriodicalId\":54712,\"journal\":{\"name\":\"Nuclear Physics B\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-06-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S055032132400155X/pdfft?md5=7643ed2a5c13db0156720b66a8eaf9b2&pid=1-s2.0-S055032132400155X-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Physics B\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S055032132400155X\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, PARTICLES & FIELDS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Physics B","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S055032132400155X","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, PARTICLES & FIELDS","Score":null,"Total":0}
引用次数: 0

摘要

受全息暗能量模型的启发,我们探索了各种能量密度剖面,作为创建可穿越虫洞的潜在来源。由于这些能量密度都是正值,我们引入了一个pr(r)=ωr(r)ρ(r)的状态方程。我们发现,要实现零潮汐力,ωr(r) 必须在 r 接近无穷大时变得无限大。为了解决这个问题,我们对函数 ωr(r)进行了适当的修正,从而在任何地方都能得到有限的结果。这些修正不会影响虫洞咽喉附近的状态方程的行为。令人惊讶的是,所有暗能量剖面最终都进入了幻影区域。在我们考虑的剖面中,只有一个不需要改变ωr(r)就能实现零潮汐力。这个剖面也与全球单极的存在相一致。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Traversable wormholes supported by holographic dark energy with a modified equation of state

Inspired by holographic dark energy models, we explore various energy density profiles as potential sources for creating traversable wormholes. Because these energy densities are all positive, we introduce an equation of state in the form pr(r)=ωr(r)ρ(r). We find that achieving Zero Tidal Forces requires ωr(r) to become infinite as r approaches infinity. To solve this issue, we introduce appropriate modifications on the function ωr(r) in such a way to obtain a finite result everywhere. These modifications do not affect the behavior of the equation of state near the wormhole's throat. Surprisingly, all dark energy profiles end up in the phantom region. Among the profiles we consider, only one does not require changes to ωr(r) to achieve Zero Tidal Forces. This profile is also consistent with the presence of a Global Monopole.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Nuclear Physics B
Nuclear Physics B 物理-物理:粒子与场物理
CiteScore
5.50
自引率
7.10%
发文量
302
审稿时长
1 months
期刊介绍: Nuclear Physics B focuses on the domain of high energy physics, quantum field theory, statistical systems, and mathematical physics, and includes four main sections: high energy physics - phenomenology, high energy physics - theory, high energy physics - experiment, and quantum field theory, statistical systems, and mathematical physics. The emphasis is on original research papers (Frontiers Articles or Full Length Articles), but Review Articles are also welcome.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信