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Perturbative and Non-perturbative $N=8$ Supergravity
We study extremal black holes, their ADM mass and area of the horizon in N = 8 supergravity. Contrary to intuition gained from N = 2, 4 theories, in N = 8 supergravity BPS states may become massless only at the boundary of moduli space. We show that stringy states described in [1], which have no mas...
Autores principales: | , , |
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Formato: | info:eu-repo/semantics/article |
Lenguaje: | eng |
Publicado: |
Phys. Lett. B
2009
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2010.05.049 http://cds.cern.ch/record/1213943 |
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author | Bianchi, Massimo Ferrara, Sergio Kallosh, Renata |
author_facet | Bianchi, Massimo Ferrara, Sergio Kallosh, Renata |
author_sort | Bianchi, Massimo |
collection | CERN |
description | We study extremal black holes, their ADM mass and area of the horizon in N = 8 supergravity. Contrary to intuition gained from N = 2, 4 theories, in N = 8 supergravity BPS states may become massless only at the boundary of moduli space. We show that stringy states described in [1], which have no mass gap and survive in the toroidal compactification in addition to massless states of perturbative N = 8 supergravity, display a null singularity in four-dimensional space-time, when viewed as solutions of N = 8 Einstein equations. We analyze known methods of resolving such singularities and explain why they do not work in D=4, N = 8 supergravity. We discuss possible implications for the issue of UV finiteness of the four-dimensional N = 8 perturbation theory. |
format | info:eu-repo/semantics/article |
id | cern-1213943 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2009 |
publisher | Phys. Lett. B |
record_format | invenio |
spelling | cern-12139432023-03-12T20:50:06Z doi:10.1016/j.physletb.2010.05.049 http://cds.cern.ch/record/1213943 eng Bianchi, Massimo Ferrara, Sergio Kallosh, Renata Perturbative and Non-perturbative $N=8$ Supergravity Particle Physics - Theory We study extremal black holes, their ADM mass and area of the horizon in N = 8 supergravity. Contrary to intuition gained from N = 2, 4 theories, in N = 8 supergravity BPS states may become massless only at the boundary of moduli space. We show that stringy states described in [1], which have no mass gap and survive in the toroidal compactification in addition to massless states of perturbative N = 8 supergravity, display a null singularity in four-dimensional space-time, when viewed as solutions of N = 8 Einstein equations. We analyze known methods of resolving such singularities and explain why they do not work in D=4, N = 8 supergravity. We discuss possible implications for the issue of UV finiteness of the four-dimensional N = 8 perturbation theory. We study extremal black holes, their ADM mass and area of the horizon in N=8 supergravity. Contrary to intuition gained from N=2,3,4 theories, in N=8 , as well as in N=5,6 , supergravity BPS states may become massless only at the boundary of moduli space. We show that stringy states described in Green, Ooguri, Schwarz (2007) [10] , which have no mass gap and survive in toroidal compactifications in addition to the massless states of perturbative N=8 supergravity, display a null singularity in four-dimensional space–time, when viewed as solutions of the N=8 version of Einstein equations. We analyze known methods of resolving such singularities and explain why they all fail in D=4 , N=8 supergravity. We discuss possible implications for the issue of UV finiteness of perturbative N=8 supergravity and the plausibility of a non-perturbative completion that exclude singular states. We study extremal black holes, their ADM mass and area of the horizon in N = 8 supergravity. Contrary to intuition gained from N = 2, 4 theories, in N = 8 supergravity BPS states may become massless only at the boundary of moduli space. We show that stringy states described in [1], which have no mass gap and survive in the toroidal compactification in addition to massless states of perturbative N = 8 supergravity, display a null singularity in four-dimensional space-time, when viewed as solutions of N = 8 Einstein equations. We analyze known methods of resolving such singularities and explain why they do not work in D=4, N = 8 supergravity. We discuss possible implications for the issue of UV finiteness of the four-dimensional N = 8 perturbation theory. info:eu-repo/grantAgreement/EC/FP7/226455 info:eu-repo/semantics/openAccess Education Level info:eu-repo/semantics/article http://cds.cern.ch/record/1213943 Phys. Lett. B Phys. Lett. B, (2010) pp. 328-331 2009-10-21 |
spellingShingle | Particle Physics - Theory Bianchi, Massimo Ferrara, Sergio Kallosh, Renata Perturbative and Non-perturbative $N=8$ Supergravity |
title | Perturbative and Non-perturbative $N=8$ Supergravity |
title_full | Perturbative and Non-perturbative $N=8$ Supergravity |
title_fullStr | Perturbative and Non-perturbative $N=8$ Supergravity |
title_full_unstemmed | Perturbative and Non-perturbative $N=8$ Supergravity |
title_short | Perturbative and Non-perturbative $N=8$ Supergravity |
title_sort | perturbative and non-perturbative $n=8$ supergravity |
topic | Particle Physics - Theory |
url | https://dx.doi.org/10.1016/j.physletb.2010.05.049 http://cds.cern.ch/record/1213943 http://cds.cern.ch/record/1213943 |
work_keys_str_mv | AT bianchimassimo perturbativeandnonperturbativen8supergravity AT ferrarasergio perturbativeandnonperturbativen8supergravity AT kalloshrenata perturbativeandnonperturbativen8supergravity |