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Sugestões de pesquisa :: Pesquisa Básica
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2011-03-28
15:30
Supergravity: foundations and applications / Ceresole, A (Turin U. ; INFN Turin) ; Ferrara, S (Rome U. ; INFN, Rome)
CERN-PH-TH-2010-112. - 2010.

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2011-03-28
15:23
Extremal black hole flows and duality invariants / Ceresole, A (Turin U. ; INFN Turin)
Extremal black holes in Maxwell-Einstein supergravities with scalar fields can be obtained as solutions of first order flow equations even when they are not supersymmetric, provided one identifies a suitable superpotential W entering the effective potential, and driving the evolution of the scalar fields. We briefly review the main ideas for the construction of W in terms of duality invariants of N = 2 special geometry and we comment on its properties in wider contexts..
2010 - Published in : Fortschr. Phys. 58 (2010) 859-863

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2011-03-11
09:38
State-space Geometry, Statistical Fluctuations and Black Holes in String Theory / Bellucci, Stefano ; Tiwari, Bhupendra Nath
We study the state-space geometry of various extremal and nonextremal black holes in string theory [...]
arXiv:1103.2064. - 2011.
Preprint

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2011-02-25
08:22
Freudenthal Duality and Generalized Special Geometry / Ferrara, Sergio (CERN) ; Marrani, Alessio (CERN) ; Yeranyan, Armen (Frascati ; Yerevan State U.)
Freudenthal duality, introduced in L. Borsten, D. [...]
arXiv:1102.4857; CERN-PH-TH-2011-028.- 2011 - 10 p. - Published in : Phys. Lett. B 701 (2011) 640-645 Fulltext: PDF; External link: Preprint

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2011-02-14
21:26
State-space geometry, non-extremal black holes and Kaluza-Klein monopoles / Bellucci, Stefano ; Tiwari, Bhupendra Nath
We examine the statistical nature of the charged anticharged non-extremal black holes in string theory. From the perspective of the intrinsic Riemannian Geometry, the first principle of the statistical mechanics shows that the stability properties of general nonextremal nonlarge charged black brane solutions are divulged from the positivity of the corresponding principle minors of the space-state metric tensor. [...]
arXiv:1102.2391.- 2012 - 10 p. - Published in : Mod. Phys. Lett. A 27 (2012) 1250095 External link: Preprint

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2011-01-28
16:15
Consistent truncations with massive modes and holography / Cassani, Davide ; Dall'Agata, Gianguido ; Faedo, Anton F
We review the basic features of some recently found consistent Kaluza-Klein truncations including massive modes. We emphasize the general ideas underlying the reduction procedure, then we focus on type IIB supergravity on 5-dimensional manifolds admitting a Sasaki-Einstein structure, which leads to half-maximal gauged supergravity in five dimensions. [...]
arXiv:1101.5312.- 2011 - 6 p. - Published in : Fortschr. Phys. 59 (2011) 652 External link: Preprint
In : 16th European Workshop on String Theory, Madrid, Spain, 14 - 18 Jun 2010

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2011-01-26
15:58
Strong Interactions, (De)coherence and Quarkonia / Bellucci, Stefano ; Chandra, Vinod ; Tiwari, Bhupendra Nath
Quarkonia are the central objects to explore the non-perturbative nature of non-abelian gauge theories. [...]
arXiv:1101.4745. - 2011.
Preprint

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2011-01-19
14:21
Two-Centered Magical Charge Orbits / Andrianopoli, Laura (Turin Polytechnic) ; D'Auria, Riccardo (Turin Polytechnic ; INFN, Turin) ; Ferrara, Sergio (CERN ; Frascati) ; Marrani, Alessio (CERN) ; Trigiante, Mario (Turin Polytechnic ; INFN, Turin)
We determine the two-centered generic charge orbits of magical N = 2 and maximal N = 8 supergravity theories in four dimensions. These orbits are classified by seven U-duality invariant polynomials, which group together into four invariants under the horizontal symmetry group SL(2,R). [...]
arXiv:1101.3496; CERN-PH-TH-2011-006.- 2011 - 17 p. - Published in : JHEP 04 (2011) 041 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint

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2010-12-23
11:27
Vacuum stability, string density of states and the Riemann zeta function / Angelantonj, Carlo ; Cardella, Matteo ; Elitzur, Shmuel ; Rabinovici, Eliezer
We study the distribution of graded degrees of freedom in classically stable oriented closed string vacua and use the Rankin-Selberg transform to link it to the finite one-loop vacuum energy. [...]
arXiv:1012.5091 ; DFTT 26-2010. - 2010.
Preprint

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2010-12-21
10:52
D-brane non-perturbative effects and geometric deformations / Dymarsky, Anatoly ; Martucci, Luca
We study how non-perturbative dynamics on D-branes affects the ten-dimensional geometry. We show that a gaugino condensate changes the complex and the symplectic structures of the original manifold by deforming the supersymmetry conditions. [...]
arXiv:1012.4018.- 2011 - 51 p. - Published in : JHEP 2011 (2011) 61 External link: Preprint

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SUPERFIELDS (Supersymmetry, Quantum Gravity and Gauge Fields) is co-funded by the European Commission within the Framework Programme 7 Ideas Specific Programme, under Grant Agreement no. 226455. Project website: http://cern.ch/Superfields.