420 research outputs found
Mass-deformed ABJM and Black Holes in AdS
We find a class of new supersymmetric dyonic black holes in four-dimensional
maximal gauged supergravity which are asymptotic to the invariant AdS Warner vacuum. These black holes can be embedded in
eleven-dimensional supergravity where they describe the backreaction of
M2-branes wrapped on a Riemann surface. The holographic dual description of
these supergravity backgrounds is given by a partial topological twist on a
Riemann surface of a three-dimensional SCFT that is obtained by
a mass-deformation of the ABJM theory. We compute explicitly the topologically
twisted index of this SCFT and show that it accounts for the entropy of the
black holes.Comment: 67 pages, 7 figure
Holography for on
We construct the five-dimensional supergravity dual of the
mass deformation of the supersymmetric Yang-Mills theory on
and use it to calculate the universal contribution to the corresponding
free energy at large 't Hooft coupling in the planar limit. The
holographic RG flow solutions are smooth and preserve four supercharges. As a
novel feature compared to the holographic duals of on
, in our backgrounds the five-dimensional dilaton has a
non-trivial profile, and the gaugino condensate is fixed in terms of the
mass-deformation parameters. Important aspects of the analysis involve
characterizing the ambiguities in the partition function of non-conformal
supersymmetric theories on as well as the action of
S-duality on the theory.Comment: 40 pages + appendices, 4 figure
Decoding a Three-Dimensional Conformal Manifold
We study the one-dimensional complex conformal manifold that controls the
infrared dynamics of a three-dimensional supersymmetric theory
of three chiral superfields with a cubic superpotential. Two special points on
this conformal manifold are the well-known XYZ model and three decoupled copies
of the critical Wess-Zumino model. The conformal manifold enjoys a discrete
duality group isomorphic to and can be thought of as an orbifold of
. We use the expansion and the numerical
conformal bootstrap to calculate the spectrum of conformal dimensions of
low-lying operators and their OPE coefficients, and find a very good
quantitative agreement between the two approaches.Comment: 59 pages, 13 figure
Spiky Strings, Giant Magnons and beta-deformations
We study rigid string solutions rotating on the S^3 subspace of the
beta-deformed AdS_5xS^5 background found by Lunin and Maldacena. For particular
values of the parameters of the solutions we find the known giant magnon and
single spike strings. We present a single spike string solution on the deformed
S^3 and find how the deformation affects the dispersion relation. The possible
relation of this string solution to spin chains and the connection of the
solutions on the undeformed S^3 to the sine-Gordon model are briefly discussed.Comment: 20 pages, 2 figures; v2: typos corrected, references adde
Supergravity Instabilities of Non-Supersymmetric Quantum Critical Points
Motivated by the recent use of certain consistent truncations of M-theory to
study condensed matter physics using holographic techniques, we study the
SU(3)-invariant sector of four-dimensional, N=8 gauged supergravity and compute
the complete scalar spectrum at each of the five non-trivial critical points.
We demonstrate that the smaller SU(4)^- sector is equivalent to a consistent
truncation studied recently by various authors and find that the critical point
in this sector, which has been proposed as the ground state of a holographic
superconductor, is unstable due to a family of scalars that violate the
Breitenlohner-Freedman bound. We also derive the origin of this instability in
eleven dimensions and comment on the generalization to other embeddings of this
critical point which involve arbitrary Sasaki-Einstein seven manifolds. In the
spirit of a resurging interest in consistent truncations, we present a formal
treatment of the SU(3)-invariant sector as a U(1)xU(1) gauged N=2 supergravity
theory coupled to one hypermultiplet.Comment: 46 page
Mass Deformations of the ABJM Theory: The Holographic Free Energy
We find a class of new supersymmetric Euclidean solutions in four-dimensional
maximal gauged supergravity. The holographic dual description of these
backgrounds is given by a mass-deformation of the ABJM theory with general
values for the R-charges. We calculate the free energy for the
supergravity backgrounds and find agreement with the supersymmetric
localization calculation of the free energy in the large limit.Comment: 40 pages, 5 figure
Schr\"odinger Deformations of AdS_3 x S^3
We study Schr\"odinger invariant deformations of the AdS_3 x S^3 x T^4 (or
K3) solution of IIB supergravity and find a large class of solutions with
integer and half-integer dynamical exponents. We analyze the supersymmetries
preserved by our solutions and find an infinite number of solutions with four
supersymmetries. We study the solutions holographically and find that the dual
D1-D5 (or F1-NS5) CFT is deformed by irrelevant operators of spin one and two.Comment: 23 page
Holography for on
We find the gravity dual of super-Yang-Mills theory on
and use holography to calculate the universal contribution to the
corresponding free energy at large and large 't Hooft coupling. Our
result matches the expression previously computed using supersymmetric
localization in the field theory. This match represents a non-trivial precision
test of holography in a non-conformal, Euclidean signature setting.Comment: 31 pages + appendices, 3 figure
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