Article
Physics, Particles & Fields
Robin Karlsson, Andrei Parnachev, Petar Tadic
Summary: In d-dimensional CFTs with a large number of degrees of freedom, the thermalization of stress tensor and multi stress tensor operators is equivalent to a universal behavior of their OPE coefficients with a pair of identical heavy operators. In free CFTs, multi stress tensor operators thermalize while light operators do not.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Krai Cheamsawat, Sebastian Fischetti, Lucas Wallis, Toby Wiseman
Summary: The behavior of the vacuum free energy of various (2+1)-dimensional CFTs on an ultrastatic spacetime as a function of spatial geometry was compared, showing qualitative similarity between the free theories and a remarkable quantitative similarity between holographic CFT and the free fermion. The holographic CFT, despite being strongly-coupled, differs from the fermion by less than one percent over a wide range of deformations.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Pablo Bueno, Horacio Casini, Oscar Lasso Andino, Javier Moreno
Summary: This paper discusses the entanglement entropy of smooth regions in general three-dimensional CFTs and its properties, such as F and RG monotonicity. The results show that F has a complex relationship with different theories and geometric shapes of the region, but for small geometric deformations of the disk region, F is minimized by disks. The proof utilizes strong subadditivity of entanglement entropy and the geometric fact that an osculating circle can always be placed within a given smooth entangling region.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Elena Caceres, Arnab Kundu, Ayan K. Patra, Sanjit Shashi
Summary: This research focuses on the analytic continuations of holographic renormalization group (RG) flows beyond their infrared (IR) fixed points, which provide a natural framework for describing physics inside black holes. The study constructs a monotonic holographic a-function for counting degrees of freedom along a trans-IR flow. It is argued that the degrees of freedom become sparse and vanish when reaching a trans-IR endpoint represented by a Kasner singularity. Furthermore, the research demonstrates that entanglement and complexity from volume are generally insufficient in probing the trans-IR flows, while 2-point correlations and complexity from action are complementary and more effective in this regard.
Article
Physics, Particles & Fields
Subramanya Hegde, Madhu Mishra, Bindusar Sahoo
Summary: This paper derives the action for N = 3 conformal supergravity in four space-time dimensions and embeds the N = 3 Weyl multiplet in it. By changing a specific coefficient, two different embeddings are obtained, resulting in different invariant actions. As a consistency check, the supersymmetrization of the Pontryagin density is shown to be a total derivative. The complete action for the supersymmetrization of the Weyl square term is also presented, and a consistent truncation of the N = 4 Weyl multiplet to the N = 3 Weyl multiplet is discussed.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Nikolay Gromov, Julius Julius, Nicolo Primi
Summary: In the study, a cusped Wilson line with J insertions of scalar fields in N = 4 SYM was considered, showing that in a certain limit the Feynman diagrams are integrable at all loop orders. The integrable system was identified as a quantum fishchain with open boundary conditions. The derivation of the Baxter equation for Q-functions and quantization condition for the spectrum allowed for numerical determination of the non-perturbative spectrum.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Multidisciplinary
Simone Giombi, Himanshu Khanchandani, Xinan Zhou
Summary: In this study, conformal field theories on the real projective space RPd were analyzed, focusing on the two-point functions of scalar operators. Based on calculations of Witten diagrams on the quotient space AdS(d+1)/Z(2), an analytic approach to two-point functions was developed by converting the structure of conformal block decomposition into specific sum rules.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2021)
Article
Physics, Particles & Fields
Lorenzo Coccia
Summary: In the large N limit, we compute the topologically twisted index of the 3d T[SU(N)] theory, utilizing recent results from five dimensional quiver gauge theories. Our calculation correctly reproduces the entropy of the universal black hole that can be embedded in the holographically dual solution.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Junkai Dong, Thomas Hartman, Yikun Jiang
Summary: In this study, WZW models living on a moduli space parameterized by current-current deformations were explored, revealing the ensemble of conformal field theories and their impact on conserved currents and central charge. The average partition function was calculated and interpreted as a sum over 3-manifolds, suggesting a holographic dual for the ensemble-averaged theory. At a perturbative level, the bulk theory was identified as U(1)(2N) Chern-Simons theory coupled to additional matter fields, with a key mathematical result being the Siegel-Weil formula for the characters of an affine Lie algebra.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Fedor Levkovich-Maslyuk, Michelangelo Preti
Summary: We study the gamma-deformation of the planar N = 4 super Yang-Mills theory, which breaks all supersymmetries but is expected to preserve integrability. Using the Quantum Spectral Curve framework, we show that the operator Tr (phi(1)phi(1)) built from two scalars satisfies integrability and reproduce the known 1-loop prediction. The calculated results provide evidence that the gamma-deformed model is an integrable CFT at least in the planar limit.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Nejc Ceplak, Stefano Giusto, Marcel R. R. Hughes, Rodolfo Russo
Summary: The connected tree-level part of 4-point holographic correlators in AdS(3) x S-3 x M involving multi-trace and single-trace operators were derived. These correlators were found to be compactly written in terms of Bloch-Wigner-Ramakrishnan functions for multi-trace operators. Consistency checks were performed on the derived expressions and anomalous dimensions of non-BPS double-trace operators were extracted.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Michael B. Green, Congkao Wen
Summary: This paper looks at a specific class of n-point correlation functions in the context of N = 4 supersymmetric SU(N) Yang-Mills theory. These correlators violate the U(1)(Y) charge by a maximum of 2(n - 4) units and satisfy recursion relations similar to the soft dilaton relations in type IIB superstring theory. The Mellin representations of these correlators correspond to higher derivative contact terms in the low-energy expansion of type IIB superstring theory in AdS(5)x S-5.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Subham Dutta Chowdhury, Kausik Ghosh
Summary: This study calculates the number of independent solutions of crossing constraints in a CFT involving charged scalars and charged fermions, providing further evidence that any CFT with a large central charge expansion and a large gap in the spectrum has an AdS bulk dual.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Burkhard Eden, Dennis le Plat, Alessandro Sfondrini
Summary: The study proposes an integrable bootstrap framework for computing correlation functions for superstrings in AdS(3) x S-3 x T-4 backgrounds, extending the hexagon tessellation approach. The framework's applicability to less supersymmetric setups is demonstrated, along with its ability to satisfy non-trivial consistency conditions. Possible applications include the study of wrapping corrections, higher-point correlation functions, and non-planar corrections.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Simon Caron-Huot, Dalimil Mazac, Leonardo Rastelli, David Simmons-Duffin
Summary: The paper proves a long-standing conjecture that any CFT with a large central charge and a large gap Delta(gap) in the spectrum of higher-spin single-trace operators must be dual to a local effective field theory in AdS. The authors derive numerical bounds on bulk Wilson coefficients in terms of Delta(gap) using the conformal bootstrap, and show how AdS(4) naturally resolves the infrared divergences present in 4D flat-space bounds. The results imply the validity of twice-subtracted dispersion relations for any S-matrix arising from the flat-space limit of AdS/CFT.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
