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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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32 papers · 2 filters
Quantum AdS_5 x S^5 superstring in the AdS light-cone gauge
S. Giombi, R. Ricci, R. Roiban +2
We consider the AdS_5 x S^5 superstring in the light-cone gauge adapted to a massless geodesic in AdS5 in the Poincare patch. The resulting action has a relatively simple structure…
Strong versus Weak Coupling Confinement in N=2 Supersymmetric QCD
A. Marshakov, A. Yung
We consider N=2 supersymmetric QCD with the gauge group SU(N_c)=SU(N+1) and N_f number of quark matter multiplets, being perturbed by a small mass term for the adjoint matter, so t…
CFT driven cosmology and the DGP/CFT correspondence
A. O. Barvinsky, C. Deffayet, A. Yu. Kamenshchik
We present a dual 5D braneworld picture of a recently suggested model for a microcanonical description of a 4D cosmology driven by a conformal field theory with a large number of q…
Tree-level S-matrix of Pohlmeyer reduced form of AdS_5 x S^5 superstring theory
B. Hoare, A. A. Tseytlin
With a motivation to find a 2-d Lorentz-invariant solution of the AdS_5 x S^5 superstring we continue the study of the Pohlmeyer-reduced form of this theory. The reduced theory is…
Remarks on Existence of Proper Action for Reducible Gauge Theories
Igor A. Batalin, Klaus Bering
In the field-antifield formalism, we review existence and uniqueness proofs for the proper action in the reducible case. We give two new existence proofs based on two resolution de…
Matrix Model Conjecture for Exact BS Periods and Nekrasov Functions
A. Mironov, A. Morozov, Sh. Shakirov
We give a concise summary of the impressive recent development unifying a number of different fundamental subjects. The quiver Nekrasov functions (generalized hypergeometric series…
The Schwinger-DeWitt technique for quantum effective action in brane induced gravity models
A. O. Barvinsky, D. V. Nesterov
We develop the Schwinger-DeWitt technique for the covariant curvature expansion of the quantum effective action for brane induced gravity models in curved spacetime. This expansion…
Higher Equations of Motion in Boundary Liouville Field Theory
A. Belavin, V. Belavin
In addition to the ordinary bulk higher equations of motion in the boundary version of the Liouville conformal field theory, an infinite set of relations containing the boundary op…
Nekrasov Functions from Exact BS Periods: the Case of SU(N)
A. Mironov, A. Morozov
In arXiv:0910.5670 we suggested that the Nekrasov function with one non-vanishing deformation parameter εis obtained by the standard Seiberg-Witten contour-integral construction. T…
Tunneling cosmological state revisited: Origin of inflation with a non-minimally coupled Standard Model Higgs inflaton
Andrei O. Barvinsky, Alexander Yu. Kamenshchik, Claus Kiefer +1
We suggest a path integral formulation for the tunneling cosmological state, which admits a consistent renormalization and renormalization group (RG) improvement in particle physic…
Nekrasov Functions and Exact Bohr-Sommerfeld Integrals
A. Mironov, A. Morozov
In the case of SU(2), associated by the AGT relation to the 2d Liouville theory, the Seiberg-Witten prepotential is constructed from the Bohr-Sommerfeld periods of 1d sine-Gordon m…
Convexity of effective Lagrangian in nonlinear electrodynamics as derived from causality
Anatoly E. Shabad, Vladimir V. Usov
In nonlinear electrodynamics, by implementing the causality principle as the requirement that the group velocity of elementary excitations over a background field should not exceed…
Linearized Lorentz-Violating Gravity and Discriminant Locus in the Moduli Space of Mass Terms
Andrei Mironov, Sergey Mironov, Alexei Morozov +1
We analyze the pattern of normal modes in linearized Lorentz-violating massive gravity over the 5-dimensional moduli space of mass terms. Ghost-free theories arise at bifurcation p…
Gauge fields in (A)dS within the unfolded approach: algebraic aspects
E. D. Skvortsov
It has recently been shown that generalized connections of the (A)dS space symmetry algebra provide an effective geometric and algebraic framework for all types of gauge fields in…
Unified BRST description of AdS gauge fields
K. B. Alkalaev, M. Grigoriev
A concise formulation for mixed-symmetry gauge fields on AdS space is proposed. It is explicitly local, gauge invariant, and has manifest AdS symmetry. Various other known formulat…
Proving AGT relations in the large-c limit
A. Mironov, A. Morozov
In the limit of large central charge the 4-point Virasoro conformal block becomes a hypergeometric function. It is represented by a sum of chiral Nekrasov functions, which can…
On non-conformal limit of the AGT relations
A. Marshakov, A. Mironov, A. Morozov
The Seiberg-Witten prepotentials for N=2 SUSY gauge theories with N_f<2N_c fundamental multiplets are obtained from conformal N_f=2N_c theory by decoupling 2N_c-N_f multiplets of h…
On AGT relation in the case of U(3)
A. Mironov, A. Morozov
We consider the AGT relation, expressing conformal blocks for the Virasoro and W-algebras in terms of Nekrasov's special functions, in the simplest case of the 4-point functions fo…
Bosonic conformal higher--spin fields of any symmetry
M. A. Vasiliev
Free Lagrangians are found both for gauge and non-gauge bosonic conformal fields of any symmetry type and in any space-time dimension. Conformal gauge fields of various types, thei…
Zamolodchikov asymptotic formula and instanton expansion in N=2 SUSY N_f=2N_c QCD
A. Marshakov, A. Mironov, A. Morozov
The AGT relations allow one to convert the Zamolodchikov asymptotic formula for the conformal block into the instanton expansion of the Seiberg-Witten prepotential for theory with…
CFT exercises for the needs of AGT
Andrei Mironov, Sergei Mironov, Alexei Morozov +1
An explicit check of the AGT relation between the W_N-symmetry controlled conformal blocks and U(N) Nekrasov functions requires knowledge of the Shapovalov matrix and various tripl…
First Order String Theory and the Kodaira-Spencer Equations. II
O. Gamayun, A. Marshakov
The first-order bosonic string theory, perturbed by primary operator, corresponding to the deformation of target-space complex structure is considered. We compute the correlation f…
Gauge invariant two-point vertices of shadow fields, AdS/CFT, and conformal fields
R. R. Metsaev
In the framework of gauge invariant Stueckelberg approach, totally symmetric arbitrary spin shadow fields in flat space-time of dimension greater than or equal to four are studied.…
On Combinatorial Expansions of Conformal Blocks
A. Marshakov, A. Mironov, A. Morozov
In a recent paper (arXiv:0906.3219) the representation of Nekrasov partition function in terms of nontrivial two-dimensional conformal field theory has been suggested. For non-vani…