A peak in the power spectrum of primordial gravitational waves induced by primordial dark magnetic fields
Dark gauge fields have been discussed as candidates for dark matter recently. If they existed, primordial dark magnetic fields during inflation would have existed. It is believed that primordial gravitational waves (PGWs) arise out of quantum fluctuations during inflation. We study the graviton-dark...
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| Veröffentlicht in: | Journal of cosmology and astroparticle physics 2023-05, Vol.2023 (5), p.52 |
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| container_issue | 5 |
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| container_title | Journal of cosmology and astroparticle physics |
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| creator | Kanno, Sugumi Mukuno, Ann Soda, Jiro Ueda, Kazushige |
| description | Dark gauge fields have been discussed as candidates for dark matter recently. If they existed, primordial dark magnetic fields during inflation would have existed. It is believed that primordial gravitational waves (PGWs) arise out of quantum fluctuations during inflation. We study the graviton-dark photon conversion process in the presence of background primordial dark magnetic fields and find that the process induces the tachyonic instability of the PGWs. As a consequence, a peak appears in the power spectrum of PGWs. It turns out that the peak height depends on the direction of observation. The peak frequency could be in the range from 10
-5
to 10
3
Hertz for GUT scale inflation. Hence, the observation of PGWs could provide a new window for probing primordial dark magnetic fields. |
| doi_str_mv | 10.1088/1475-7516/2023/05/052 |
| format | Article |
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-5
to 10
3
Hertz for GUT scale inflation. Hence, the observation of PGWs could provide a new window for probing primordial dark magnetic fields.</description><identifier>ISSN: 1475-7516</identifier><identifier>EISSN: 1475-7516</identifier><identifier>DOI: 10.1088/1475-7516/2023/05/052</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Dark matter ; extragalactic magnetic fields ; Gravitational waves ; gravitational waves / theory ; Gravitons ; inflation ; Magnetic fields ; Peak frequency</subject><ispartof>Journal of cosmology and astroparticle physics, 2023-05, Vol.2023 (5), p.52</ispartof><rights>2023 IOP Publishing Ltd and Sissa Medialab</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c304t-3cd9f7be0dec6fa897da961825877d10d963532da7bba7d5b1dc8716f3aa119c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/1475-7516/2023/05/052/pdf$$EPDF$$P50$$Giop$$H</linktopdf><link.rule.ids>314,776,780,27901,27902,53821,53868</link.rule.ids></links><search><creatorcontrib>Kanno, Sugumi</creatorcontrib><creatorcontrib>Mukuno, Ann</creatorcontrib><creatorcontrib>Soda, Jiro</creatorcontrib><creatorcontrib>Ueda, Kazushige</creatorcontrib><title>A peak in the power spectrum of primordial gravitational waves induced by primordial dark magnetic fields</title><title>Journal of cosmology and astroparticle physics</title><addtitle>J. Cosmol. Astropart. Phys</addtitle><description>Dark gauge fields have been discussed as candidates for dark matter recently. If they existed, primordial dark magnetic fields during inflation would have existed. It is believed that primordial gravitational waves (PGWs) arise out of quantum fluctuations during inflation. We study the graviton-dark photon conversion process in the presence of background primordial dark magnetic fields and find that the process induces the tachyonic instability of the PGWs. As a consequence, a peak appears in the power spectrum of PGWs. It turns out that the peak height depends on the direction of observation. The peak frequency could be in the range from 10
-5
to 10
3
Hertz for GUT scale inflation. Hence, the observation of PGWs could provide a new window for probing primordial dark magnetic fields.</description><subject>Dark matter</subject><subject>extragalactic magnetic fields</subject><subject>Gravitational waves</subject><subject>gravitational waves / theory</subject><subject>Gravitons</subject><subject>inflation</subject><subject>Magnetic fields</subject><subject>Peak frequency</subject><issn>1475-7516</issn><issn>1475-7516</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLAzEUhYMoWKs_QQi4cTM2j8ljlqX4goIbXYdMkqnpKzGZafHfO0NFuxCEC_fB-Q6XA8A1RncYSTnBpWCFYJhPCCJ0glhf5ASMfu6nR_M5uMh5iRDhlMoR8FMYnV5Bv4Xtu4Mx7F2COTrTpm4DQwNj8puQrNdruEh651vd-rDtt73eudxztjPOwvrzWGl1WsGNXmxd6w1svFvbfAnOGr3O7uq7j8Hbw_3r7KmYvzw-z6bzwlBUtgU1tmpE7ZB1hjdaVsLqimNJmBTCYmQrThklVou61sKyGlsjBeYN1RrjytAxuDn4xhQ-OpdbtQxd6j_OikhccU54WfYqdlCZFHJOrlHD-zp9KozUkKoaElNDYmpIVSHWF-k5fOB8iL_G_zG3fzBLo-OxTEXb0C8SdIgD</recordid><startdate>20230501</startdate><enddate>20230501</enddate><creator>Kanno, Sugumi</creator><creator>Mukuno, Ann</creator><creator>Soda, Jiro</creator><creator>Ueda, Kazushige</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20230501</creationdate><title>A peak in the power spectrum of primordial gravitational waves induced by primordial dark magnetic fields</title><author>Kanno, Sugumi ; Mukuno, Ann ; Soda, Jiro ; Ueda, Kazushige</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c304t-3cd9f7be0dec6fa897da961825877d10d963532da7bba7d5b1dc8716f3aa119c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Dark matter</topic><topic>extragalactic magnetic fields</topic><topic>Gravitational waves</topic><topic>gravitational waves / theory</topic><topic>Gravitons</topic><topic>inflation</topic><topic>Magnetic fields</topic><topic>Peak frequency</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kanno, Sugumi</creatorcontrib><creatorcontrib>Mukuno, Ann</creatorcontrib><creatorcontrib>Soda, Jiro</creatorcontrib><creatorcontrib>Ueda, Kazushige</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of cosmology and astroparticle physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kanno, Sugumi</au><au>Mukuno, Ann</au><au>Soda, Jiro</au><au>Ueda, Kazushige</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A peak in the power spectrum of primordial gravitational waves induced by primordial dark magnetic fields</atitle><jtitle>Journal of cosmology and astroparticle physics</jtitle><addtitle>J. Cosmol. Astropart. Phys</addtitle><date>2023-05-01</date><risdate>2023</risdate><volume>2023</volume><issue>5</issue><spage>52</spage><pages>52-</pages><issn>1475-7516</issn><eissn>1475-7516</eissn><abstract>Dark gauge fields have been discussed as candidates for dark matter recently. If they existed, primordial dark magnetic fields during inflation would have existed. It is believed that primordial gravitational waves (PGWs) arise out of quantum fluctuations during inflation. We study the graviton-dark photon conversion process in the presence of background primordial dark magnetic fields and find that the process induces the tachyonic instability of the PGWs. As a consequence, a peak appears in the power spectrum of PGWs. It turns out that the peak height depends on the direction of observation. The peak frequency could be in the range from 10
-5
to 10
3
Hertz for GUT scale inflation. Hence, the observation of PGWs could provide a new window for probing primordial dark magnetic fields.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/1475-7516/2023/05/052</doi><tpages>14</tpages></addata></record> |
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| language | eng |
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| subjects | Dark matter extragalactic magnetic fields Gravitational waves gravitational waves / theory Gravitons inflation Magnetic fields Peak frequency |
| title | A peak in the power spectrum of primordial gravitational waves induced by primordial dark magnetic fields |
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