216 research outputs found
Supersymmetric black holes from matter coupled gauged supergravity
In matter coupled gauged supergravity in six dimensions, we study
supersymmetric black holes with various horizon geometries. We find new
horizons
with and , and present the black hole
solution numerically. The full black hole is an interpolating geometry between
the asymptotically boundary and the
horizon.
We also find black holes with horizons of K\"ahler four-cycles in Calabi-Yau
fourfolds and Cayley four-cycles in manifolds.Comment: v3: 24 pages, 3 figures. Title changed. Previous title was "D4-branes
wrapped on supersymmetric four-cycles from matter coupled gauged
supergravity". Numerical black hole solutions added. Published version. v4:
Omitted citations of [29] in the introduction and above (3.21) recovered.
arXiv admin note: text overlap with arXiv:1809.0351
Supersymmetric Janus solutions of dyonic -gauged supergravity
We study supersymmetric Janus solutions of dyonic -gauged
= 8 supergravity. We mostly find Janus solutions flowing to 3d
= 8 SYM phase which is the worldvolume theory on D2-branes and
non-conformal. There are also solutions flowing from the critical points which
are dual to 3d SCFTs from deformations of the D2-brane theory.Comment: 15 pages, 4 figures; v2: clarifications and references added,
published versio
D4-branes wrapped on a topological disk
Employing the method applied to M5-branes recently by Bah, Bonetti, Minasian
and Nardoni, we study D4-branes wrapped on a disk with a non-trivial holonomy
at the boundary. In gauged supergravity in six dimensions, we find
supersymmetric solutions and uplift the solutions to massive type IIA
supergravity. We calculate the holographic free energy of dual
three-dimensional superconformal field theories.Comment: v2: 23 pages, 2 figures, analytic expression of holographic free
energy included, published versio
Towards mass-deformed ABJM compactified on a spindle
By following the work of Arav, Gauntlett, Roberts and Rosen constructing the
gravity dual of 4d Leigh-Strassler theory compactified on a spindle, we take
the first step towards the gravity dual of 3d mass-deformed ABJM theory on a
spindle. We derive the BPS equations necessary to construct the
solutions asymptotic to the Warner
vacuum dual to the mass-deformed ABJM where is a spindle. We find the
flux quantization through the spindle. However, we were able to fix the
boundary conditions of the solution to explicitly find solutions numerically.
We leave this problem for the future study.Comment: 28 page
Supersymmetric AdS_6 Solutions of Type IIB Supergravity
We study the general requirement for supersymmetric AdS solutions in type
IIB supergravity. We employ the Killing spinor technique and study the
differential and algebraic relations among various Killing spinor bilinears to
find the canonical form of the solutions. Our result agrees precisely with the
work of Apruzzi et. al. \cite{Apruzzi:2014qva} which used the pure spinor
technique. We also obtained the four-dimensional theory through the dimensional
reduction of type IIB supergravity on AdS. This effective action is
essentially a nonlinear sigma model with five scalar fields parametrizing
, modified by a scalar potential
and coupled to Einstein gravity in Euclidean signature. We argue that the
scalar potential can be explained by a subgroup CSO(1,1,1)
in a way analogous to gauged supergravity.Comment: v2: 24 pages, misprints corrected, published in EPJ
Spindle black holes in AdSSE
We construct new classes of supersymmetric AdS solutions
of 4d gauged supergravity in presence of charged hypermultiplet scalars, with
the complex weighted projective space known as a spindle. These
solutions can be viewed as near-horizon geometries of asymptotically Anti
de-Sitter (AdS) black holes with magnetic fluxes that admit embedding in
11d on Sasaki-Einstein (SE) manifolds, which renders them of holographic
interest. We show that in each case the Bekenstein-Hawking entropy follows from
the procedure of gluing two gravitational blocks, ultimately determined by
SE data. This allows us to establish the general form of the gravitational
blocks in gauged 4d supergravity with charged scalars and
massive vectors. Holographically, our results provide a large N answer for the
spindle index with anti-twist and additional mesonic or baryonic fluxes of a
number of Chern-Simons-matter theories.Comment: 40 pages, 2 figures, 1 Mathematica fil
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