9,421 research outputs found
Dualities in 4D Theories with Product Gauge Groups from Brane Configurations
We study brane configurations which correspond to N=1 field theories in four
dimensions. By inverting the order of the NS 5-branes and D6-branes, a check on
dualities in four dimensional theories can be made.
We consider a brane configuration which yields electric/magnetic duality for
gauge theories with product gauge group.
We also discuss the possible extension to any alternating product of SO and
Sp groups. The new features arising from the intersection of the NS 5-branes on
the orientifold play a crucial role in our construction.Comment: 13 pages, Latex, version to appear in Physics Letters
Trivialized Content, Elevated From: Aesthetics of Secrecy in Turkish Politics in the 2000s
This essay will first provide a brief history of the Islamist party\u27s coming to power by means of its effective use of a populist imagery. The paper will then focus on the emergence of a new regime of secrecy in Turkish politics by looking at two high-profile legal cases, Ergenekon and the “Cosmic Room,” in which one can observe the blueprints of a struggle between different factions for taking over the state. During the investigations, secret documents about the wrongdoings of the secular establishment were leaked to and widely covered by the media. Sober debates on the contents of such documents were dwarfed by the tendency to scandalize, stigmatize, and foster fascination for the purported clandestine organizations within the state in line with conspiracist aesthetics. In later sections of the paper, the elements of entertainment and seriousness of this conspiracist aesthetics are analyzed
SQCD Vacua and Geometrical Engineering
We consider the geometrical engineering constructions for the N = 1 SQCD
vacua recently proposed by Giveon and Kutasov. After one T-duality, the
geometries with wrapped D5 branes become N = 1 brane configurations with NS
branes and D4 branes. The field theories encoded by the geometries contain
extra massive adjoint fields for the flavor group. After performing a flop, the
geometries contain branes, antibranes and branes wrapped on non-holomorphic
cycles. The various tachyon condensations between pairs of wrapped D5 branes
and anti D5 branes together with deformations of the cycles give rise to a
variety of supersymmetric and metastable non-supersymmetric vacua.Comment: 21 Pages, Latex, 8 Figure
Flows between Dualities for 3d Chern-Simons Theories
We study Seiberg-like dualities for 3d N=2 theories with flavors in
fundamental and adjoint representations. The recent results of Intriligator and
Seiberg provide a derivation of an Aharony duality from a Giveon-Kutasov
duality. We extend their result to the case of more general theories involving
various masses for fundamental quarks and adjoint fields. By fine tuning the
vev of a scalar field and using various identifications between gauge groups
and their singlet duals, we derive several examples of Aharony dualities. For
theories with an adjoint field, we discuss the connection between the Aharony
dualities proposed by Kim and Park for theories with multiple Coulomb branches
and Giveon-Kutasov-Niarchos dualities.Comment: 21 page
Renormalization Group Flows on D3 branes at an Orbifolded Conifold
We consider D3-branes at an orbifolded conifold whose horizon
resolves into a smooth Einstein manifold which joins several copies of . We describe in details the resolution of the singular horizon
and describe different types of two-cycles appearing in the resolution.
For a large number of D3 branes, the AdS/CFT conjecture becomes a duality
between type IIB string theory on and the
field theory living on the D3 branes. We study the fractional branes as small
perturbations of the string background and we reproduce the logarithmic flow of
field theory couplings by studying fluxes of NS-NS and R-R two forms through
different 2-cycles of the resolved horizon.Comment: Latex 22 pages with 3 eps file
Three Dimensional SCFT from M2 Branes at Conifold Singularities
Recently it was conjectured that parallel branes at conical singularities are
related to string/M theory on where is an Einstein manifold.
In this paper we consider coincident M2 branes near a conifold singularity when
M theory is compactified on where is a seven dimensional
Sasaki-Einstein manifold. We argue that M theory on
can be described in terms of a three dimensional superconformal field theory.We
use the fact that the three dimensional self-mirror duality is preserved by
exact marginal operators, as observed by Strassler.Comment: 16 pages, Latex, minor extensions, important references added,
acknowledgements extende
Branes at Orbifolded Conifold Singularities and Supersymmetric Gauge Field Theories
We consider D3 branes at orbifolded conifold singularities which are not
quotient singularities. We use toric geometry and gauged linear sigma model to
study the moduli space of the gauge theories on the D3 branes. We find that
topologically distinct phases are related by a flop transition. It is also
shown that an orbifold singularity can occur in some phases if we give
expectation values to some of the chiral fields.Comment: 23 pages, 10 figures, late
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