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23 papers · 2 filters
Holographic hydrodynamics: models and methods
Nabamita Banerjee, Suvankar Dutta
We review recent developments in holographic hydrodynamics. We start from very basic discussion on hydrodynamic systems and motivate why string theory is an essential tool to deal…
Hairy black holes and solitons in global AdS 5
Oscar J. C. Dias, Pau Figueras, Shiraz Minwalla +3
We use a mix of analytic and numerical methods to exhaustively study a class of asymptotically global AdS solitons and hairy black hole solutions in negative cosmological constant…
Real and Virtual Bound States in Lüscher Corrections for CP3 Magnons
Michael C. Abbott, Inês Aniceto, Diego Bombardelli
We study classical and quantum finite-size corrections to giant magnons in AdS_4 x CP^3 using generalised Lüscher formulae. Lüscher F-terms are organised in powers of the exponenti…
Unravelling the novel Higgs mechanism in (2+1)d Chern-Simons theories
Sunil Mukhi
Chern-Simons gauge theories in 2+1 dimensions with multiple gauge fields exhibit novel properties that are analysed here in some detail. A striking feature is the possibility of a…
Chern-Simons Theory with Vector Fermion Matter
Simone Giombi, Shiraz Minwalla, Shiroman Prakash +3
We study three dimensional conformal field theories described by U(N) Chern-Simons theory at level k coupled to massless fermions in the fundamental representation. By solving a Sc…
Index for Three Dimensional Superconformal Field Theories and Its Applications
Shuichi Yokoyama
We review aspects of superconformal indices in three dimension. Three dimensional superconformal indices can be exactly computed by using localization method including monopole con…
Holographic Wilsonian flows and emergent fermions in extremal charged black holes
Daniel Elander, Hiroshi Isono, Gautam Mandal
We study holographic Wilsonian RG in a general class of asymptotically AdS backgrounds with a U(1) gauge field. We consider free charged Dirac fermions in such a background, and in…
Low energy supersymmetry from R-symmetries
Zheng Sun
In a generic setting of Wess-Zumino models, we prove that the existence of a supersymmetric vacuum with a vanishing superpotential can be a consequence of a continuous or discrete…
Shear sum rules at finite chemical potential
Justin R. David, Sachin Jain, Somyadip Thakur
We derive sum rules which constrain the spectral density corresponding to the retarded propagator of the T_{xy} component of the stress tensor for three gravitational duals. The sh…
Stability Constraints on Classical de Sitter Vacua
Gary Shiu, Yoske Sumitomo
We present further no-go theorems for classical de Sitter vacua in Type II string theory, i.e., de Sitter constructions that do not invoke non-perturbative effects or explicit supe…
Gregory-Laflamme as the confinement/deconfinement transition in holographic QCD
Gautam Mandal, Takeshi Morita
We discuss the phase structure of N D4 branes wrapped on a temporal (Euclidean) and a spatial circle, in terms of the near-horizon AdS geometries. This system has been studied prev…
The Near-Flat-Space and BMN Limits for Strings in AdS4 x CP3 at One Loop
Michael C. Abbott, Per Sundin
This paper studies type IIA string theory in AdS4 x CP3 in both the BMN limit and the Maldacena-Swanson or near-flat-space limit. We derive the simpler Lagrangian for the latter li…
A theory of first order dissipative superfluid dynamics
Jyotirmoy Bhattacharya, Sayantani Bhattacharyya, Shiraz Minwalla +1
We determine the most general form of the equations of relativistic superfluid hydrodynamics consistent with Lorentz invariance, time-reversal invariance, the Onsager principle and…
Vacuum statistics and parameter tuning for F-term supersymmetry breaking
Zheng Sun
We carry out a model-independent EFT method study on the vacuum statistics of general F-term SUSY breaking models. Assuming a smooth distribution of Lagrangian parameters, SUSY bre…
Holographic Fermi and Non-Fermi Liquids with Transitions in Dilaton Gravity
Norihiro Iizuka, Nilay Kundu, Prithvi Narayan +1
We study the two-point function for fermionic operators in a class of strongly coupled systems using the gauge-gravity correspondence. The gravity description includes a gauge fiel…
Supersymmetric States in Large N Chern-Simons-Matter Theories
Shiraz Minwalla, Prithvi Narayan, Tarun Sharma +2
In this paper we study the spectrum of BPS operators/states in N=2 superconformal U(N) Chern-Simons-matter theories with adjoint chiral matter fields, with and without superpotenti…
Localization of N=4 Superconformal Field Theory on S^1 x S^3 and Index
Satoshi Nawata
We provide the geometrical meaning of the superconformal index. With this interpretation, the superconformal index can be realized as the partition functi…
A Note on CFT Correlators in Three Dimensions
Simone Giombi, Shiroman Prakash, Xi Yin
In this note we present a simple method of constructing general conformally invariant three point functions of operators of various spins in three dimensions. Upon further imposing…
Towards multi-scale dynamics on the baryonic branch of Klebanov-Strassler
Daniel Elander, Jerome Gaillard, Carlos Nunez +1
We construct explicitly a new class of backgrounds in type-IIB supergravity which generalize the baryonic branch of Klebanov-Strassler. We apply a solution-generating technique tha…
Strong Coupling BCS Superconductivity and Holography
S. Kalyana Rama, Swarnendu Sarkar, B. Sathiapalan +1
We attempt to give a holographic description of the microscopic theory of a BCS superconductor. Exploiting the analogy with chiral symmetry breaking in QCD we use the Sakai-Sugimot…
Phases of a two dimensional large N gauge theory on a torus
Gautam Mandal, Takeshi Morita
We consider two-dimensional large N gauge theory with D adjoint scalars on a torus, which is obtained from a D+2 dimensional pure Yang-Mills theory on T^{D+2} with D small radii. T…
Strong Interactions, (De)coherence and Quarkonia
Stefano Bellucci, Vinod Chandra, Bhupendra Nath Tiwari
Quarkonia are the central objects to explore the non-perturbative nature of non-abelian gauge theories. We describe the confinement-deconfinement phases for heavy quarkonia in a ho…
Dissipative superfluid dynamics from gravity
Jyotirmoy Bhattacharya, Sayantani Bhattacharyya, Shiraz Minwalla
Charged asymptotically AdS black branes in five dimensions are sometimes unstable to the condensation of charged scalar fields. For fields of infinite charge and squared mass -4 He…