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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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33 papers · 2 filters
Gauge invariant approach to low-spin anomalous conformal currents and shadow fields
R. R. Metsaev
Conformal low-spin anomalous currents and shadow fields in flat space-time of dimension greater than or equal to four are studied. Gauge invariant formulation for such currents and…
Large spin expansion of semiclassical 3-point correlators in AdS_5 x S^5
J. G. Russo, A. A. Tseytlin
3-point correlators in AdS_5xS^5 string theory in which two states are "heavy" (have large quantum numbers) and the third is "light" (here chosen as chiral primary scalar) can be c…
Standard Model Higgs inflation: CMB, Higgs mass and quantum cosmology
Andrei O. Barvinsky
We consider the inflation model generated by the Standard Model (SM) Higgs boson having a strong non-minimal curvature coupling. This model suggests the range of the Higgs mass $13…
Noncommutative deformations of quantum field theories, locality, and causality
Michael A. Soloviev
We investigate noncommutative deformations of quantum field theories for different star products, particularly emphasizing the locality properties and the regularity of the deforme…
A direct proof of AGT conjecture at beta = 1
A. Mironov, A. Morozov, Sh. Shakirov
The AGT conjecture claims an equivalence of conformal blocks in 2d CFT and sums of Nekrasov functions (instantonic sums in 4d SUSY gauge theory). The conformal blocks can be presen…
Brezin-Gross-Witten model as "pure gauge" limit of Selberg integrals
A. Mironov, A. Morozov, Sh. Shakirov
The AGT relation identifies the Nekrasov functions for various N=2 SUSY gauge theories with the 2d conformal blocks, which possess explicit Dotsenko-Fateev matrix model (beta-ensem…
Unfolded Equations for Current Interactions of 4d Massless Fields as a Free System in Mixed Dimensions
O. A. Gelfond, M. A. Vasiliev
Interactions of massless fields of all spins in four dimensions with currents of any spin is shown to result from a solution of the linear problem that describes a gluing between r…
Unfolded Scalar Supermultiplet
D. S. Ponomarev, M. A. Vasiliev
Unfolded equations of motion for N = 1, D = 4 scalar supermultiplet are presented. We show how the superspace formulation emerges from the unfolded formulation. To analyze supersym…
6d conformal gravity
R. R. Metsaev
In the framework of ordinary-derivative approach, conformal gravity in space-time of dimension six is studied. The field content, in addition to conformal graviton field, includes…
Parent formulation at the Lagrangian level
Maxim Grigoriev
The recently proposed first-order parent formalism at the level of equations of motion is specialized to the case of Lagrangian systems. It is shown that for diffeomorphism-invaria…
Statistical sum in the CFT driven cosmology
A. O. Barvinsky, Yu. V. Gusev
The path integration technique recently developed for the statistical sum of the microcanonical ensemble in cosmology is applied to the calculation of the one-loop preexponential f…
Towards a proof of AGT conjecture by methods of matrix models
A. Mironov, A. Morozov, Sh. Shakirov
A matrix model approach to proof of the AGT relation is briefly reviewed. It starts from the substitution of conformal blocks by the Dotsenko-Fateev beta-ensemble averages and Nekr…
On AGT Relations with Surface Operator Insertion and Stationary Limit of Beta-Ensembles
A. Marshakov, A. Mironov, A. Morozov
We present a summary of current knowledge about the AGT relations for conformal blocks with additional insertion of the simplest degenerate operator, and a special choice of the co…
FV-type action for AdS(5) mixed-symmetry fields
K. B. Alkalaev
We formulate Fradkin-Vasiliev type theory of massless higher spin fields in AdS(5). The corresponding action functional describes cubic order approximation to gravitational interac…
Quantum dispersion relations for excitations of long folded spinning superstring in AdS_5 x S^5
S. Giombi, R. Ricci, R. Roiban +1
We use AdS_5 x S^5 superstring sigma model perturbation theory to compute the leading one-loop corrections to the dispersion relations of the excitations near a long spinning strin…
On "Dotsenko-Fateev" representation of the toric conformal blocks
A. Mironov, A. Morozov, Sh. Shakirov
We demonstrate that the recent ansatz of arXiv:1009.5553, inspired by the original remark due to R.Dijkgraaf and C.Vafa, reproduces the toric conformal blocks in the same sense tha…
Nonperturbative renormalization in light-front dynamics and applications
J. -F. Mathiot, A. V. Smirnov, N. A. Tsirova +1
We present a general framework to calculate the properties of relativistic compound systems from the knowledge of an elementary Hamiltonian. Our framework provides a well-controlle…
Path Integral Formulation with Deformed Antibracket
Igor A. Batalin, Klaus Bering
We propose how to incorporate the Leites-Shchepochkina-Konstein-Tyutin deformed antibracket into the quantum field-antifield formalism.
First order parent formulation for generic gauge field theories
Glenn Barnich, Maxim Grigoriev
We show how a generic gauge field theory described by a BRST differential can systematically be reformulated as a first order parent system whose spacetime part is determined by th…
On the perturbative S-matrix of generalized sine-Gordon models
B. Hoare, A. A. Tseytlin
Motivated by its relation to the Pohlmeyer reduction of AdS_5 x S^5 superstring theory we continue the investigation of the generalized sine-Gordon model defined by SO(N+1)/SO(N) g…
Gravitational effective action and entanglement entropy in UV modified theories with and without Lorentz symmetry
Dmitry Nesterov, Sergey N. Solodukhin
We calculate parameters in the low energy gravitational effective action and the entanglement entropy in a wide class of theories characterized by improved ultraviolet (UV) behavio…
Short-distance regularity of Green's function and UV divergences in entanglement entropy
Dmitry Nesterov, Sergey N. Solodukhin
Reformulating our recent result (arXiv:1007.1246 [hep-th]) in coordinate space we point out that no matter how regular is short-distance behavior of Green's function the entangleme…
Frame-like Actions for Massless Mixed-Symmetry Fields in Minkowski space. Fermions
E. D. Skvortsov, Yu. M. Zinoviev
A frame-like action for massless mixed-symmetry fermionic fields in Minkowski space is constructed. The action is uniquely determined by gauge invariance.
Nonperturbative calculation of the anomalous magnetic moment in the Yukawa model within truncated Fock space
V. A. Karmanov, J. -F. Mathiot, A. V. Smirnov
Within the covariant formulation of light-front dynamics, we calculate the state vector of a physical fermion in the Yukawa model. The state vector is decomposed in Fock sectors an…