Results 11 to 20 of about 68,418 (194)
Extremal Black Holes in Supergravity and the Bekenstein-Hawking Entropy
Entropy, 2002 : We review some results on the connection among supergravity central charges, BPS states and Bekenstein-Hawking entropy. In particular, N = 2 super-gravity in four dimensions is studied in detail.
R. D'Auria, L. Andrianopoli
doaj +4 more sources
Advanced Materials InterfacesAssembling two‐dimensional (2D) nanoflakes into freestanding ultrathin films while maintaining their superior mechanical and functional properties can enable a wide range of applications.
Dawei Zhang +10 more
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Multimetric supergravities [PDF]
Journal of High Energy Physics, 2016 Making use of integral forms and superfield techniques we propose supersymmetric extensions of the multimetric gravity Lagrangians in dimensions one, two, three and four. The supersymmetric interaction potential covariantly deforms the bosonic one, producing in particular suitable super-symmetric polynomials generated by the Berezinian.
Del Monte, Fabrizio +2 more
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Supergravity unification [PDF]
Nuclear Physics B - Proceedings Supplements, 2001 Contribution to the Proceedings "Thirty Years of Supersymmetry", October 13-15, 2000, Minnesota ...
Chamseddine, Ali H. +2 more
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Classical and Quantum Gravity, 2009 We study the phenomenon that pairs of supergravities can have identical bosonic field content but different fermionic extensions. Such twin theories are classified and shown to originate as truncations of a common theory with more supersymmetry. Moreover, we discuss the possible gaugings and scalar potentials of twin theories.
Roest, Diederik, Samtleben, Henning
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Electrodeposited Manganese Dioxides and Their Composites as Electrocatalysts for Energy Conversion Reactions. [PDF]
ChemSusChemThis review focuses on the electrochemical synthesis of MnO2 materials and their composites and their application as electrocatalysts for OER and HER reactions for the conversion of renewable energy into chemical fuels. The electrocatalytic function of electrodeposited MnO2 for ORR and bifunctional ORR/OER for efficient operation of fuel cells and ...
Nakayama M, Yoshida W.
europepmc +2 more sources
Effective supergravity for supergravity domain walls [PDF]
Physics Letters B, 2002 12 pages ...
Cvetic, M, Lambert, N D
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Journal of High Energy Physics, 2001 We find the supergravity solution sourced by a supertube: a (1/4)-supersymmetric D0-charged IIA superstring that has been blown up to a cylindrical D2-brane by angular momentum. The supergravity solution captures all essential features of the supertube, including the D2-dipole moment and an upper bound on the angular momentum: violation of this bound ...
Emparan, Roberto +2 more
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Journal of High Energy Physics, 2023 Abstract We construct two-dimensional supergravity theories endowed with a positive cosmological constant, that admit de Sitter vacua. We consider the cases of $$ \mathcal{N} $$ N = 1 as well as $$ \mathcal{N} $$ N = 2 supersymmetry, and couple the supergravity ...
Dionysios Anninos +2 more
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