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We study the one loop renormalisation of 4d $SU(N)$ Yang-Mills theory with $M$ adjoint representation scalar multiplets related by $O(M)$ symmetry. General $M$ are of field theoretic interest, and the 4d one loop beta function of the gauge…

High Energy Physics - Theory · Physics 2023-05-17 Nadia Flodgren , Bo Sundborg

We study the scaling law of the energy spectrum of classical strings on AdS_5 x S^5, in particular, in the SL(2) sector for large S (AdS spin) and fixed J (S^1 \subset S^5 spin). For any finite gap solution, we identify the limit in which…

High Energy Physics - Theory · Physics 2008-11-26 Kazuhiro Sakai , Yuji Satoh

We construct the non-minimal linear representations of the N=4 Extended Supersymmetry in one-dimension. They act on 8 bosonic and 8 fermionic fields. Inequivalent representations are specified by the mass-dimension of the fields and the…

High Energy Physics - Theory · Physics 2011-07-26 Marcelo Gonzales , Sadi Khodaee , Francesco Toppan

A new family of exactly solvable models is introduced. These models are generalizations of the XXZ chain where the distance among spins up ($\sigma^z$-basis) cannot be smaller or equal to t (t=0,1,2,...). The case t=0 recovers the standard…

Statistical Mechanics · Physics 2007-05-23 F. C. Alcaraz , R. Z. Bariev

We study spin models underlying the non-planar dynamics of ${\cal N}=4$ SYM gauge theory. In particular, we derive the non-local spin chain Hamiltonian generating dilatations in the gauge theory at leading order in $g_{\rm YM}^2 N$ but…

High Energy Physics - Theory · Physics 2009-11-10 S. Bellucci , P. -Y. Casteill , J. F. Morales , C. Sochichiu

We study the commutative limit of the non-commutative maximally supersymmetric Yang-Mills theory in four dimensions (N=4 SYM). The commutative limits of non-commutative spaces are important in particular in the applications of…

High Energy Physics - Theory · Physics 2015-05-20 Masanori Hanada , Hidehiko Shimada

We investigate the critical behavior of a spin chain coupled to bosonic baths characterized by a spectral density proportional to $\omega^s$, with $s>1$. Varying $s$ changes the effective dimension $d_\text{eff} = d + z$ of the system,…

Statistical Mechanics · Physics 2012-06-13 Iver Bakken Sperstad , Einar B. Stiansen , Asle Sudbø

We explore the space of non-gravitational, maximally supersymmetric, planar 4d effective field theories (EFTs) that have $\mathcal{N}=4$ super Yang-Mills (SYM) at leading order. We show that in the weakly-coupled regime, highly non-trivial…

High Energy Physics - Theory · Physics 2026-05-15 Henriette Elvang , Aidan Herderschee , Roger Morales

The flow of U(1) charge through dense fishnet diagrams, in a non-hermitian matrix scalar field theory g_1Tr(\Sigma^\dagger\Sigma)^2 + 2g_1vTr\Sigma^{\dagger 2}\Sigma^2, is described by a 6-vertex model on a ``diamond'' lattice [1]. We give…

High Energy Physics - Theory · Physics 2009-10-31 Charles B. Thorn

I put forward the stringy representation of the 1/N strong coupling (SC) expansion for the regularized Wilson's loop-averages in the continuous D>=3 Yang-Mills theory (YM_{D}) with a sufficiently large bare coupling constant…

High Energy Physics - Theory · Physics 2009-11-07 Andrey Yu. Dubin

We test the spectrum of string theory on AdS_5 x S^5 derived in hep-th/0305052 against that of single-trace gauge invariant operators in free N=4 super Yang-Mills theory. Masses of string excitations at critical tension are derived by…

High Energy Physics - Theory · Physics 2011-03-23 N. Beisert , M. Bianchi , J. F. Morales , H. Samtleben

A U(2,2|4)-invariant A-model constructed from fermionic superfields has recently been proposed as a sigma model for the superstring on AdS_5xS^5. After explaining the relation of this A-model with the pure spinor formalism, the A-model…

High Energy Physics - Theory · Physics 2011-04-11 Nathan Berkovits , Cumrun Vafa

Massive Yang-Mills theory is known to be renormalizable in 1+1 dimensions. The gluon mass is introduced by coupling the gauge field to an SU(N) principal chiral nonlinear sigma model. The proof of renormalizability relies on the asymptotic…

High Energy Physics - Lattice · Physics 2014-10-22 Axel Cortés Cubero

We study the analytic properties of the $AdS_5/CFT_4$ Y functions. It is shown that the TBA equations, including the dressing factor, can be obtained from the Y-system with some additional information on the square-root discontinuities…

High Energy Physics - Theory · Physics 2015-03-17 Andrea Cavaglià , Davide Fioravanti , Roberto Tateo

We compute the planar finite size corrections to the spectrum of the dilatation operator acting on two-impurity states of a certain limit of conformal $\mathcal{N}=2$ quiver gauge field theory which is a $Z_M$-orbifold of $\mathcal{N}=4$…

High Energy Physics - Theory · Physics 2009-11-11 Davide Astolfi , Valentina Forini , Gianluca Grignani , Gordon W. Semenoff

The anomalous dimensions of planar N=4 SYM theory operators like tr(Phi D^S Phi) expanded in large spin S have the asymptotics \gamma= f ln S + f_c + 1/S (f_11 ln S + f_10) + ..., where f (the universal scaling function or cusp anomaly),…

High Energy Physics - Theory · Physics 2009-07-13 M. Beccaria , V. Forini , A. Tirziu , A. A. Tseytlin

In 2008, Aharony, Bergman, Jafferis, and Maldacena (ABJM) discovered a three-dimensional Chern-Simons theory with N = 6 supersymmetry and conjectured that in a certain limit, this theory is dual to type IIA string theory on AdS4xCP3. Since…

High Energy Physics - Theory · Physics 2015-03-19 Arthur E. Lipstein

The quantum field theory describing the massive O(2) nonlinear sigma-model is investigated through two non-perturbative constructions: The form factor bootstrap based on integrability and the lattice formulation as the XY model. The…

High Energy Physics - Lattice · Physics 2009-11-07 J. Balog , M. Niedermaier , F. Niedermayer , A. Patrascioiu , E. Seiler , P. Weisz

Quantum field theories with exact but spontaneously broken conformal invariance have an intriguing feature: their vacuum energy (cosmological constant) is equal to zero. Up to now, the only known ultraviolet complete theories where…

High Energy Physics - Theory · Physics 2020-11-24 Georgios K. Karananas , Vladimir Kazakov , Mikhail Shaposhnikov

We study the scaling of the Renyi entanglement entropy of two disjoint blocks of critical lattice models described by conformal field theories with central charge c=1. We provide the analytic conformal field theory result for the second…

Statistical Mechanics · Physics 2015-03-19 Vincenzo Alba , Luca Tagliacozzo , Pasquale Calabrese