Regular Solutions in Higher-Derivative Gravity
Local gravitational theories with more than four derivatives can have remarkable quantum properties. Namely, they can be super-renormalizable and may be unitary in the Lee-Wick sense, if the massive poles of the propagator are complex. It is important, therefore, to also explore the classical aspect...
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MDPI AG
2018-12-01
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| Series: | Universe |
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| Online Access: | https://www.mdpi.com/2218-1997/4/12/140 |
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doaj-71810da3550544a0b0800e44e28b4d5b2020-11-25T00:10:23ZengMDPI AGUniverse2218-19972018-12-0141214010.3390/universe4120140universe4120140Regular Solutions in Higher-Derivative GravityBreno L. Giacchini0Tibério de Paula Netto1Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, RJ 22290-180, BrazilDepartamento de Física, ICE, Universidade Federal de Juiz de Fora, Juiz de Fora, MG 36036-330, BrazilLocal gravitational theories with more than four derivatives can have remarkable quantum properties. Namely, they can be super-renormalizable and may be unitary in the Lee-Wick sense, if the massive poles of the propagator are complex. It is important, therefore, to also explore the classical aspects of these theories. In this talk we present recent results in this direction. Specifically, we discuss the effect that that higher-order terms can have on the Newtonian potential and related singularities.https://www.mdpi.com/2218-1997/4/12/140higher-derivative gravityLee-Wick gravitynon-local gravityspacetime singularities |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Breno L. Giacchini Tibério de Paula Netto |
| spellingShingle |
Breno L. Giacchini Tibério de Paula Netto Regular Solutions in Higher-Derivative Gravity Universe higher-derivative gravity Lee-Wick gravity non-local gravity spacetime singularities |
| author_facet |
Breno L. Giacchini Tibério de Paula Netto |
| author_sort |
Breno L. Giacchini |
| title |
Regular Solutions in Higher-Derivative Gravity |
| title_short |
Regular Solutions in Higher-Derivative Gravity |
| title_full |
Regular Solutions in Higher-Derivative Gravity |
| title_fullStr |
Regular Solutions in Higher-Derivative Gravity |
| title_full_unstemmed |
Regular Solutions in Higher-Derivative Gravity |
| title_sort |
regular solutions in higher-derivative gravity |
| publisher |
MDPI AG |
| series |
Universe |
| issn |
2218-1997 |
| publishDate |
2018-12-01 |
| description |
Local gravitational theories with more than four derivatives can have remarkable quantum properties. Namely, they can be super-renormalizable and may be unitary in the Lee-Wick sense, if the massive poles of the propagator are complex. It is important, therefore, to also explore the classical aspects of these theories. In this talk we present recent results in this direction. Specifically, we discuss the effect that that higher-order terms can have on the Newtonian potential and related singularities. |
| topic |
higher-derivative gravity Lee-Wick gravity non-local gravity spacetime singularities |
| url |
https://www.mdpi.com/2218-1997/4/12/140 |
| work_keys_str_mv |
AT brenolgiacchini regularsolutionsinhigherderivativegravity AT tiberiodepaulanetto regularsolutionsinhigherderivativegravity |
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1725407749899026432 |