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In this paper, we put forward and discuss a proposal for a Quantum Spectral Curve (QSC) describing the planar spectrum of the holographic CFT dual to strings on AdS$_3\times$ S$^3\times$ S$^3\times$ S$^1$, a theory with global symmetry…

High Energy Physics - Theory · Physics 2026-02-20 Andrea Cavaglià , Rouven Frassek , Nicolò Primi , Roberto Tateo

We conjecture the Quantum Spectral Curve equations for string theory on $AdS_3 \times S^3 \times T^4$ with RR charge and its CFT$_2$ dual. We show that in the large-length regime, under additional mild assumptions, the QSC reproduces the…

High Energy Physics - Theory · Physics 2022-08-09 Andrea Cavaglià , Nikolay Gromov , Bogdan Stefański , jr. , Alessandro Torrielli

The spectrum of planar N=6 superconformal Chern-Simons theory, dual to type IIA superstring theory on $AdS_4 \times CP^3$, is accessible at finite coupling using integrability. Starting from the results of [arXiv:1403.1859], we study in…

High Energy Physics - Theory · Physics 2018-05-15 Diego Bombardelli , Andrea Cavaglià , Davide Fioravanti , Nikolay Gromov , Roberto Tateo

Despite the rich and fruitful history of the integrability approach to string theory on the $AdS_3\times S^3\times T^4$ background, it has not been possible to extract many concrete predictions from integrability, except in a strict…

High Energy Physics - Theory · Physics 2023-02-24 Andrea Cavaglià , Simon Ekhammar , Nikolay Gromov , Paul Ryan

We give a derivation of quantum spectral curve (QSC) - a finite set of Riemann-Hilbert equations for exact spectrum of planar N=4 SYM theory proposed in our recent paper Phys.Rev.Lett. 112 (2014). We also generalize this construction to all…

High Energy Physics - Theory · Physics 2015-10-14 Nikolay Gromov , Vladimir Kazakov , Sebastien Leurent , Dmytro Volin

We review the quantum spectral curve (QSC) formalism for anomalous dimensions of planar ${\cal\ N}=4$ SYM, including its $\gamma$-deformation. Leaving aside its derivation, we concentrate on formulation of the "final product" in its most…

High Energy Physics - Theory · Physics 2018-08-15 Vladimir Kazakov

The Quantum Spectral Curve (QSC) equations for planar $\mathcal{N}=6$ super-conformal Chern-Simons (SCS) are solved numerically at finite values of the coupling constant for states in the $\mathfrak{sl}(2|1)$ sector. New weak coupling…

High Energy Physics - Theory · Physics 2018-05-23 Diego Bombardelli , Andrea Cavaglià , Riccardo Conti , Roberto Tateo

We find a massive simplification in the non-perturbative expression for the structure constant of Wilson lines with 3 cusps when expressed in terms of the key Quantum Spectral Curve quantities, namely Q-functions. Our calculation is done…

High Energy Physics - Theory · Physics 2018-11-14 Andrea Cavaglià , Nikolay Gromov , Fedor Levkovich-Maslyuk

We propose a procedure to derive quantum spectral curves of AdS/CFT type by requiring that a specially designed analytic continuation around the branch point results in an automorphism of the underlying algebraic structure. In this way we…

Mathematical Physics · Physics 2022-04-20 Simon Ekhammar , Dmytro Volin

We show that in the asymptotic large-volume limit, the original proposal for Quantum Spectral Curve for AdS3 x S3 x T4 with R-R flux has a wider class of solutions, than studied previously. We argue that in this limit the QSC reduces to a…

High Energy Physics - Theory · Physics 2024-12-17 Simon Ekhammar , Nikolay Gromov , Bogdan Stefański

We give an introduction to the Quantum Spectral Curve in AdS/CFT. This is an integrability-based framework which provides the exact spectrum of planar N = 4 super Yang-Mills theory (and of the dual string model) in terms of a solution of a…

High Energy Physics - Theory · Physics 2020-08-26 Fedor Levkovich-Maslyuk

We show that the Quantum Spectral Curve (QSC) formalism, initially formulated for the spectrum of anomalous dimensions of all local single trace operators in N=4 SYM, can be extended to the generalized cusp anomalous dimension for all…

High Energy Physics - Theory · Physics 2016-05-03 Nikolay Gromov , Fedor Levkovich-Maslyuk

We developed an efficient numerical algorithm for computing the spectrum of anomalous dimensions of the planar ${\cal N}=4$ Super-Yang--Mills at finite coupling. The method is based on the Quantum Spectral Curve formalism. In contrast to…

High Energy Physics - Theory · Physics 2017-02-07 Nikolay Gromov , Fedor Levkovich-Maslyuk , Grigory Sizov

Recently Kazakov, Vieira and the author conjectured the Y-system set of equations describing the planar spectrum of AdS/CFT. In this paper we solve the Y-system equations in the strong coupling scaling limit. We show that the…

High Energy Physics - Theory · Physics 2011-02-18 Nikolay Gromov

With the formulation of the quantum spectral curve for the AdS5/CFT4 integrable system, it became potentially possible to compute its full spectrum with high efficiency. This is the first paper in a series devoted to the explicit design of…

High Energy Physics - Theory · Physics 2018-09-05 Christian Marboe , Dmytro Volin

The concept of spectral curve is generalized to open strings in AdS/CFT with integrability preserving boundary conditions. Our definition is based on the logarithms of the eigenvalues of the open monodromy matrix and makes possible to…

High Energy Physics - Theory · Physics 2015-06-18 Zoltan Bajnok , Minkyoo Kim , Laszlo Palla

The algebraic curve for the psu (2,2|4) quantum spin chain is determined from the thermodynamic limit of the algebraic Bethe ansatz. The Hamiltonian of this spin chain has been identified with the planar 1-loop dilatation operator of N=4…

High Energy Physics - Theory · Physics 2010-04-05 Sakura Schafer-Nameki

The the duality between ${\cal N}=4$ SYM and the AdS$_5\times\;$S$^5$ superstring appears to enjoy quantum integrability in the planar limit, which allowed to devise powerful methods ostensibly solving the spectral problem. However,…

High Energy Physics - Theory · Physics 2016-11-08 Martin Heinze

An iterative procedure perturbatively solving the quantum spectral curve of planar N=4 SYM for any operator in the sl(2) sector is presented. A Mathematica notebook executing this procedure is enclosed. The obtained results include 10-loop…

High Energy Physics - Theory · Physics 2015-09-02 Christian Marboe , Dmytro Volin

In this thesis we give explicit results for bosonic string amplitudes on AdS_3 x S^3 and the corresponding plane-wave limit. We also analyze the consequences of our approach for understanding holography in this set up, as well as its…

High Energy Physics - Theory · Physics 2007-05-23 Oswaldo Zapata
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