Zobrazeno 1 - 10
of 469
pro vyhledávání: '"De Wit, B."'
The duality symmetries of the STU-model of Sen and Vafa are very restrictive. This is utilized to determine the holomorphic function that encodes its two-derivative Wilsonian effective action and its couplings to the square of the Weyl tensor to fift
Externí odkaz:
http://arxiv.org/abs/1907.04077
Autor:
Noordegraaf, M., de Wit, B.
Political Science
Dit essay dient als achtergrond en voeding voor de projecten 'Lessen van evaluaties' en 'Toekomst van toezicht' van de WRR. Onderzocht worden de opkomst en evolutie van eigentijdse vormen van sturen en organiseren in publieke d
Dit essay dient als achtergrond en voeding voor de projecten 'Lessen van evaluaties' en 'Toekomst van toezicht' van de WRR. Onderzocht worden de opkomst en evolutie van eigentijdse vormen van sturen en organiseren in publieke d
Externí odkaz:
http://library.oapen.org/handle/20.500.12657/33946
Publikováno v:
JHEP09(2014)096
The topological string captures certain superstring amplitudes which are also encoded in the underlying string effective action. However, unlike the topological string free energy, the effective action that comprises higher-order derivative couplings
Externí odkaz:
http://arxiv.org/abs/1406.5478
Publikováno v:
JHEP06(2010)052
The Hesse potential is constructed for a class of four-dimensional N=2 supersymmetric effective actions with S- and T-duality by performing the relevant Legendre transform by iteration. It is a function of fields that transform under duality accordin
Externí odkaz:
http://arxiv.org/abs/1003.1970
Publikováno v:
JHEP 0812:086,2008
We evaluate the mixed partition function for dyonic BPS black holes using the recently proposed degeneracy formula for the STU model. The result factorizes into the OSV mixed partition function times a proportionality factor. The latter is in agreeme
Externí odkaz:
http://arxiv.org/abs/0810.1233
Publikováno v:
JHEP 0902:006,2009
BPS black hole degeneracies can be expressed in terms of an inverse Laplace transform of a partition function based on a mixed electric/magnetic ensemble, which involves a non-trivial integration measure. This measure has been evaluated for black hol
Externí odkaz:
http://arxiv.org/abs/0808.2627
Publikováno v:
JHEP 0703:085,2007
The entropy and the attractor equations for static extremal black hole solutions follow from a variational principle based on an entropy function. In the general case such an entropy function can be derived from the reduced action evaluated in a near
Externí odkaz:
http://arxiv.org/abs/hep-th/0612225
Publikováno v:
JHEP0603:074,2006
The macroscopic entropy and the attractor equations for BPS black holes in four-dimensional N=2 supergravity theories follow from a variational principle for a certain `entropy function'. We present this function in the presence of R^2-interactions a
Externí odkaz:
http://arxiv.org/abs/hep-th/0601108
Publikováno v:
JHEP0412:075,2004
It is shown that the asymptotic growth of the microscopic degeneracy of BPS dyons in four-dimensional N=4 string theory captures the known corrections to the macroscopic entropy of four-dimensional extremal black holes. These corrections are subleadi
Externí odkaz:
http://arxiv.org/abs/hep-th/0412287
Maximal and non-maximal supergravities in three spacetime dimensions allow for a large variety of semisimple and non-semisimple gauge groups, as well as complex gauge groups that have no analog in higher dimensions. In this contribution we review the
Externí odkaz:
http://arxiv.org/abs/hep-th/0403014