Magnon Inflation: Slow Roll with Steep Potentials

We find multi-scalar effective field theories (EFTs) that can achieve a slow inflationary roll despite having a scalar potential that does not satisfy the usual slow-roll condition (d V)^2

Saved in:
Bibliographic Details
Published in:arXiv.org 2016-11
Main Authors: Adshead, Peter, Blas, Diego, Burgess, C P, Hayman, Peter, Patil, Subodh P
Format: Article
Language:English
Subjects:
Antisymmetry
Broken symmetry
Cosmology
Inflation (cosmology)
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by
cites
container_end_page
container_issue
container_start_page
container_title arXiv.org
container_volume
creator Adshead, Peter
Blas, Diego
Burgess, C P
Hayman, Peter
Patil, Subodh P
description We find multi-scalar effective field theories (EFTs) that can achieve a slow inflationary roll despite having a scalar potential that does not satisfy the usual slow-roll condition (d V)^2
doi_str_mv 10.48550/arxiv.1604.06048
format article
fullrecord <record><control><sourceid>proquest</sourceid><recordid>TN_cdi_proquest_journals_2081104799</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2081104799</sourcerecordid><originalsourceid>FETCH-LOGICAL-a529-2e00a1493d2298580458ca03832858511fdabc53171a7c76388bc05706648f6b3</originalsourceid><addsrcrecordid>eNotjUtLw0AURgdBsNT-AHcDrhPvvfO6cSfFR6Gi2O7LNJ1oSpipydT68w3UzTmczfcJcYNQajYG7nz_2_6UaEGXMIIvxISUwoI10ZWYDcMeAMg6MkZNBL76z5iiXMSm87lN8V6uunSSH6nr5KnNX3KVQzjI95RDzK3vhmtx2YwKs39PxfrpcT1_KZZvz4v5w7LwhqqCAoBHXakdUcWGQRuuPShWNJZBbHZ-WxuFDr2rnVXM2xqMA2s1N3arpuL2PHvo0_cxDHmzT8c-jo8bAkYE7apK_QGk9EMm</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2081104799</pqid></control><display><type>article</type><title>Magnon Inflation: Slow Roll with Steep Potentials</title><source>Access via ProQuest (Open Access)</source><creator>Adshead, Peter ; Blas, Diego ; Burgess, C P ; Hayman, Peter ; Patil, Subodh P</creator><creatorcontrib>Adshead, Peter ; Blas, Diego ; Burgess, C P ; Hayman, Peter ; Patil, Subodh P</creatorcontrib><description>We find multi-scalar effective field theories (EFTs) that can achieve a slow inflationary roll despite having a scalar potential that does not satisfy the usual slow-roll condition (d V)^2 &lt;&lt; V^2/Mp^2. They evade the usual slow-roll conditions on \(V\) because their kinetic energies are dominated by single-derivative terms rather than the usual two-derivative terms. Single derivatives dominate during slow roll and so do not require a breakdown of the usual derivative expansion that underpins calculational control in much of cosmology. The presence of such terms requires some sort of UV Lorentz-symmetry breaking during inflation (besides the usual cosmological breaking). Chromo-natural inflation provides an example of a UV theory that can generate the multi-field single-derivative terms we consider, and we argue that the EFT we find indeed captures the slow-roll conditions for the background evolution for Chromo-natural inflation. We also show that our EFT can be understood as a multi-field generalization of the single-field Cuscuton models. The multi-field case introduces a new feature, however: the scalar kinetic terms define a target-space 2-form, F_{ab}, whose antisymmetry gives new ways for slow roll to be achieved.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1604.06048</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Antisymmetry ; Broken symmetry ; Cosmology ; Inflation (cosmology)</subject><ispartof>arXiv.org, 2016-11</ispartof><rights>2016. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/2081104799?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>780,784,25753,27925,37012,44590</link.rule.ids></links><search><creatorcontrib>Adshead, Peter</creatorcontrib><creatorcontrib>Blas, Diego</creatorcontrib><creatorcontrib>Burgess, C P</creatorcontrib><creatorcontrib>Hayman, Peter</creatorcontrib><creatorcontrib>Patil, Subodh P</creatorcontrib><title>Magnon Inflation: Slow Roll with Steep Potentials</title><title>arXiv.org</title><description>We find multi-scalar effective field theories (EFTs) that can achieve a slow inflationary roll despite having a scalar potential that does not satisfy the usual slow-roll condition (d V)^2 &lt;&lt; V^2/Mp^2. They evade the usual slow-roll conditions on \(V\) because their kinetic energies are dominated by single-derivative terms rather than the usual two-derivative terms. Single derivatives dominate during slow roll and so do not require a breakdown of the usual derivative expansion that underpins calculational control in much of cosmology. The presence of such terms requires some sort of UV Lorentz-symmetry breaking during inflation (besides the usual cosmological breaking). Chromo-natural inflation provides an example of a UV theory that can generate the multi-field single-derivative terms we consider, and we argue that the EFT we find indeed captures the slow-roll conditions for the background evolution for Chromo-natural inflation. We also show that our EFT can be understood as a multi-field generalization of the single-field Cuscuton models. The multi-field case introduces a new feature, however: the scalar kinetic terms define a target-space 2-form, F_{ab}, whose antisymmetry gives new ways for slow roll to be achieved.</description><subject>Antisymmetry</subject><subject>Broken symmetry</subject><subject>Cosmology</subject><subject>Inflation (cosmology)</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><recordid>eNotjUtLw0AURgdBsNT-AHcDrhPvvfO6cSfFR6Gi2O7LNJ1oSpipydT68w3UzTmczfcJcYNQajYG7nz_2_6UaEGXMIIvxISUwoI10ZWYDcMeAMg6MkZNBL76z5iiXMSm87lN8V6uunSSH6nr5KnNX3KVQzjI95RDzK3vhmtx2YwKs39PxfrpcT1_KZZvz4v5w7LwhqqCAoBHXakdUcWGQRuuPShWNJZBbHZ-WxuFDr2rnVXM2xqMA2s1N3arpuL2PHvo0_cxDHmzT8c-jo8bAkYE7apK_QGk9EMm</recordid><startdate>20161115</startdate><enddate>20161115</enddate><creator>Adshead, Peter</creator><creator>Blas, Diego</creator><creator>Burgess, C P</creator><creator>Hayman, Peter</creator><creator>Patil, Subodh P</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20161115</creationdate><title>Magnon Inflation: Slow Roll with Steep Potentials</title><author>Adshead, Peter ; Blas, Diego ; Burgess, C P ; Hayman, Peter ; Patil, Subodh P</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a529-2e00a1493d2298580458ca03832858511fdabc53171a7c76388bc05706648f6b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Antisymmetry</topic><topic>Broken symmetry</topic><topic>Cosmology</topic><topic>Inflation (cosmology)</topic><toplevel>online_resources</toplevel><creatorcontrib>Adshead, Peter</creatorcontrib><creatorcontrib>Blas, Diego</creatorcontrib><creatorcontrib>Burgess, C P</creatorcontrib><creatorcontrib>Hayman, Peter</creatorcontrib><creatorcontrib>Patil, Subodh P</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering collection</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Adshead, Peter</au><au>Blas, Diego</au><au>Burgess, C P</au><au>Hayman, Peter</au><au>Patil, Subodh P</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnon Inflation: Slow Roll with Steep Potentials</atitle><jtitle>arXiv.org</jtitle><date>2016-11-15</date><risdate>2016</risdate><eissn>2331-8422</eissn><abstract>We find multi-scalar effective field theories (EFTs) that can achieve a slow inflationary roll despite having a scalar potential that does not satisfy the usual slow-roll condition (d V)^2 &lt;&lt; V^2/Mp^2. They evade the usual slow-roll conditions on \(V\) because their kinetic energies are dominated by single-derivative terms rather than the usual two-derivative terms. Single derivatives dominate during slow roll and so do not require a breakdown of the usual derivative expansion that underpins calculational control in much of cosmology. The presence of such terms requires some sort of UV Lorentz-symmetry breaking during inflation (besides the usual cosmological breaking). Chromo-natural inflation provides an example of a UV theory that can generate the multi-field single-derivative terms we consider, and we argue that the EFT we find indeed captures the slow-roll conditions for the background evolution for Chromo-natural inflation. We also show that our EFT can be understood as a multi-field generalization of the single-field Cuscuton models. The multi-field case introduces a new feature, however: the scalar kinetic terms define a target-space 2-form, F_{ab}, whose antisymmetry gives new ways for slow roll to be achieved.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1604.06048</doi><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier EISSN: 2331-8422
ispartof arXiv.org, 2016-11
issn 2331-8422
language eng
recordid cdi_proquest_journals_2081104799
source Access via ProQuest (Open Access)
subjects Antisymmetry
Broken symmetry
Cosmology
Inflation (cosmology)
title Magnon Inflation: Slow Roll with Steep Potentials
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-01T10%3A12%3A51IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Magnon%20Inflation:%20Slow%20Roll%20with%20Steep%20Potentials&rft.jtitle=arXiv.org&rft.au=Adshead,%20Peter&rft.date=2016-11-15&rft.eissn=2331-8422&rft_id=info:doi/10.48550/arxiv.1604.06048&rft_dat=%3Cproquest%3E2081104799%3C/proquest%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-a529-2e00a1493d2298580458ca03832858511fdabc53171a7c76388bc05706648f6b3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=2081104799&rft_id=info:pmid/&rfr_iscdi=true