Testing Higher Derivative Gravity through Tunnelling
Higher derivative terms in the gravitational action are natural from the perspective of quantum gravity, but are perceived as leading to a lack of well-posedness. The Gauss–Bonnet term has second-order equations of motion, but does not impact gravitational dynamics in 4D, so one might expect that it...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Particles |
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| Online Access: | https://www.mdpi.com/2571-712X/7/1/8 |
| _version_ | 1797239722754441216 |
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| author | Ruth Gregory Shi-Qian Hu |
| author_facet | Ruth Gregory Shi-Qian Hu |
| author_sort | Ruth Gregory |
| collection | DOAJ |
| description | Higher derivative terms in the gravitational action are natural from the perspective of quantum gravity, but are perceived as leading to a lack of well-posedness. The Gauss–Bonnet term has second-order equations of motion, but does not impact gravitational dynamics in 4D, so one might expect that it is not physically relevant. We discuss how signatures can show up in tunnelling processes and whether these will likely be physically accessible in Higgs vacuum decay. |
| first_indexed | 2024-04-24T17:56:03Z |
| format | Article |
| id | doaj.art-5f7c822cf0404a2ca6db41db5602e566 |
| institution | Directory Open Access Journal |
| issn | 2571-712X |
| language | English |
| last_indexed | 2024-04-24T17:56:03Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Particles |
| spelling | doaj.art-5f7c822cf0404a2ca6db41db5602e5662024-03-27T13:58:45ZengMDPI AGParticles2571-712X2024-02-017114416010.3390/particles7010008Testing Higher Derivative Gravity through TunnellingRuth Gregory0Shi-Qian Hu1Department of Physics, King’s College London, The Strand, London WC2R 2LS, UKDepartment of Physics, King’s College London, The Strand, London WC2R 2LS, UKHigher derivative terms in the gravitational action are natural from the perspective of quantum gravity, but are perceived as leading to a lack of well-posedness. The Gauss–Bonnet term has second-order equations of motion, but does not impact gravitational dynamics in 4D, so one might expect that it is not physically relevant. We discuss how signatures can show up in tunnelling processes and whether these will likely be physically accessible in Higgs vacuum decay.https://www.mdpi.com/2571-712X/7/1/8black holesinstantontunnelling |
| spellingShingle | Ruth Gregory Shi-Qian Hu Testing Higher Derivative Gravity through Tunnelling Particles black holes instanton tunnelling |
| title | Testing Higher Derivative Gravity through Tunnelling |
| title_full | Testing Higher Derivative Gravity through Tunnelling |
| title_fullStr | Testing Higher Derivative Gravity through Tunnelling |
| title_full_unstemmed | Testing Higher Derivative Gravity through Tunnelling |
| title_short | Testing Higher Derivative Gravity through Tunnelling |
| title_sort | testing higher derivative gravity through tunnelling |
| topic | black holes instanton tunnelling |
| url | https://www.mdpi.com/2571-712X/7/1/8 |
| work_keys_str_mv | AT ruthgregory testinghigherderivativegravitythroughtunnelling AT shiqianhu testinghigherderivativegravitythroughtunnelling |