Article
Physics, Particles & Fields
Andrea Boido, Juan Manuel Perez Ipina, James Sparks
Summary: The article presents families of supersymmetric AdS(3) x Y-7 and AdS(3) x Y-8 solutions in IIB string theory and M-theory, respectively. The solutions are interpreted as near-horizon limits of N D3-branes wrapped on Sigma and N M5-branes wrapped on Sigma (g) x Sigma, corresponding to holographically dual to d=2, (0,2) SCFTs. The central charge and superconformal R-symmetry of the gravity solutions are shown to agree with dual field theory calculations.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Minwoo Suh
Summary: In this paper, AdS(3) solutions with non-trivial boundaries are constructed from D3-branes and M5-branes using a method applied previously in constructing AdS(5) solutions. Supersymmetric AdS(3) solutions are found in different dimensional supergravity, and are further uplifted to obtain corresponding configurations.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Sumit R. Das, Anurag Kaushal, Gautam Mandal, Kanhu Kishore Nanda, Mohamed Hany Radwan, Sandip P. Trivedi
Summary: We study minimum area surfaces associated with a region, R, of an internal space. We find that the result of Graham and Karch can be avoided in the presence of warping, and such surfaces can sometimes exist for a general region R. When such a warped product geometry arises in the IR from a higher dimensional asymptotic AdS, we argue that the area of the surface can be related to the entropy arising from entanglement of internal degrees of freedom of the boundary theory. We also make some preliminary observations about the role such surfaces can play in bulk reconstruction, and their relation to subalgebras of observables in the boundary theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
K. C. Matthew Cheung, Jacob H. T. Fry, Jerome P. Gauntlett, James Sparks
Summary: In this study, supersymmetric AdS(3) solutions of D = 11 supergravity dual to d = 2, N = (0, 2) SCFTs associated with M5-branes wrapping two different four-dimensional orbifolds were constructed. Central charges of the d = 2 SCFTs calculated from the gravity solutions were shown to agree with field theory computations using anomaly polynomials. The new D = 11 solutions were obtained through a Kaluza-Klein truncation of maximal D = 7 gauged supergravity reduced on a spindle down to D = 5 minimal gauged supergravity.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Ibrahima Bah, Federico Bonetti, Ruben Minasian, Emily Nardoni
Summary: This study focuses on the holographic duals of four-dimensional N = 2 superconformal field theories engineered by wrapping M5-branes on a sphere with an irregular puncture. Solutions are obtained in 7d gauged supergravity, taking the form of a warped product of AdS(5) and a half-spindle. The proposed duality is checked through various computations, including holographic central charge and 't Hooft anomalies, showing perfect agreement with the field theories being studied.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Nikolay Bobev, Marina David, Junho Hong, Rishi Mouland
Summary: We construct a solution for a seven-dimensional black hole with three angular momenta and two electric charges. It describes the effects of rotating M5-brane in 11-dimensional supergravity. We analyze the thermodynamic properties of the black hole and find that in the supersymmetric limit, its entropy and on-shell action agree precisely with the result of the path integral of the holographically dual 6D N=(2,0) SCFT to leading order in the large N limit.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Davide Cassani, Gregoire Josse, Michela Petrini, Daniel Waldram
Summary: We discuss consistent truncations of eleven-dimensional supergravity on a six-dimensional manifold M, preserving minimal N = 2 supersymmetry in five dimensions. These truncations are based on specific structures on the generalized E-6(6) manifold and involve different supergravity solutions.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Veselin G. Filev, Denjoe O'Connor
Summary: We construct a supergravity background corresponding to a backreacted D0/D4-brane system. By separating the D4-branes from the D0-branes and distributing the D4-branes on a spherical shell, we address the instability issue of the localized D0/D4 system. Perturbative and non-perturbative solutions are obtained.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
David Berenstein, Adolfo Holguin
Summary: In this paper, (p, q) string junction solutions between sphere and AdS giant gravitons in AdS(5) x S-5 are constructed. These solutions can be easily extended to more general half BPS geometries of LLM type and carry angular momentum in the directions of the worldvolume of the giant gravitons. We argue that these solutions are charged under a central extension of the supersymmetry algebra similar to the one in Beisert's work for the N = 4 spin chain. Furthermore, we show that these solutions solve the same minimization problem as in the Coulomb branch of N = 4 SYM, regardless of the angular momentum Q they carry.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
M. Beccaria, S. Giombi, A. A. Tseytlin
Summary: This paper presents a quantum M2 brane computation of the instanton prefactor in the ABJM 3-sphere free energy. It is found that the 1-loop term in the M2 brane partition function reproduces the exact value of the prefactor.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Kenta Suzuki, Yu-ki Suzuki, Takashi Tsuda, Masataka Watanabe
Summary: This article studies the information metric on the space of boundary coupling constants in two-dimensional conformal field theories. Such a metric is related to the Casimir energy difference of the theory defined on an interval. The information metric on the boundary conformal manifold of free boson CFT as well as SU(2)(k) WZW theory is computed, obtaining the expected result from the symmetry of the systems. The information metric on the space of non-conformal boundary states produced by boundary mass perturbations in the theory of a real free scalar is also computed, and the holographic dual of the boundary information metric in the context of AdS(3)/BCFT2 is discussed. We argue that it corresponds to the area of the minimal cross section of the end-of-the-world brane connecting two boundaries of the asymptotic BCFTs.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Pietro Benetti Genolini
Summary: We study the effects of introducing a d term in minimal gauged supergravity in four dimensions. By computing higher-derivative corrections and matching partition functions, we find that the results are consistent with the predictions of the dual three-dimensional supersymmetric field theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Erfan Esmaeili, Vahid Hosseinzadeh
Summary: The surface charges of a p-form theory on the boundary of an AdS(d+1) spacetime are calculated, with counter-terms producing divergent corner-terms that renormalize the symplectic form holographically. Different boundary conditions lead to various expressions for charges and fluxes. It is found that standard AdS boundary conditions result in conserved zero-mode charges, while leaky boundary conditions allow for an infinite number of charges forming an Abelian algebra. Additionally, the study explores magnetic p-form charges and electric/magnetic duality.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Niko Jokela, Jani Kastikainen, Elias Kiritsis, Francesco Nitti
Summary: In this study, we investigate strongly coupled ABJM theory with massive quenched flavor on the 3-sphere using the AdS/CFT correspondence. We find a quantum phase transition in the theory on the 3-sphere at a critical value of the sphere radius, which corresponds to a topology change in the D6-brane embeddings and is interpreted as the meson-melting transition. Additionally, we observe that the F-functions of the flavored ABJM theory are not monotonic, which we speculate is related to the presence of the phase transition.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Raghu Mahajan, Donald Marolf, Jorge E. Santos
Summary: The bulk double cone geometry is argued to play a key role in gauge/gravity duality, particularly in relation to quantum chaos. While extensively studied in two-dimensional theories, it is believed to have natural relevance in higher dimensions as well. The stability of the double cone to semiclassical brane nucleation in various string- and M-theory settings is discussed, with potential implications for the AdS/CFT factorization problem.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Nikolay Bobev, Thomas Fischbacher, Fridrik Freyr Gautason, Krzysztof Pilch
Summary: In four-dimensional dyonically gauged ISO(7) N = 8 supergravity, 219 AdS(4) solutions have been identified, with one preserving supersymmetry, two being non-supersymmetric, and all capable of being uplifted to massive type IIA supergravity. These solutions provide insights into the dual 3d CFTs and superconformal multiplets associated with them.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Nikolay Bobev, Anthony M. Charles, Dongmin Gang, Kiril Hristov, Valentin Reys
Summary: This study investigates the interplay between four-derivative 4d gauged supergravity, holography, wrapped M5-branes, and theories of class R. By using results from Chern-Simons theory and the 3d-3d correspondence, the study constrains the coefficients in the four-derivative supergravity Lagrangian and calculates the subleading terms in the large-N expansion of partition functions for a class of three-dimensional N = 2 SCFTs of class R. Additionally, the study determines the leading correction to the Bekenstein-Hawking entropy of black holes and proposes conjectures about the perturbative partition function of Chern-Simons theory on closed hyperbolic three-manifolds with complexified ADE gauge groups.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Nikolay Bobev, Emanuel Malek, Brandon Robinson, Henning Samtleben, Jesse van Muiden
Summary: Researchers utilized recently developed tools from exceptional field theory to calculate the full Kaluza-Klein spectrum of the AdS5 Pilch-Warner solution in type IIB supergravity, providing detailed information about the spectrum of protected and unprotected operators in the four-dimensional N = 1 Leigh-Strassler SCFT through the AdS/CFT correspondence. They also explicitly calculated the superconformal index of the SCFT in this limit and demonstrated its precise agreement with the spectrum of protected operators in the supergravity calculation.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Nikolay Bobev, Pieter Bomans, Fridrik Freyr Gautason
Summary: The passage discusses the set of protected operators in a six-dimensional N = (2, 0) SCFT whose correlation functions can be controlled by a two-dimensional chiral algebra. The alternative construction of this chiral algebra involves an Omega-deformation and equivariant integration to determine the central charge. Additionally, the construction is extended to include orbifolds of the R-4 transverse to the chiral algebra plane.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Nikolay Bobev, Pieter Bomans
Summary: This article studies the importance of spin structures as defining data in 11d supergravity backgrounds with a free orbifold action. By studying the KK spectrum of lld supergravity on AdS(4) x S-7/Z(4), it is found that different spin structures lead to distinct holographically dual 3d SCFTs with different amounts of supersymmetry.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Nikolay Bobev, Kiril Hristov, Valentin Reys
Summary: In this study, we investigate four-derivative corrections to 5d N = 2 minimal gauged supergravity using tools from conformal supergravity. We identify two supersymmetric invariants and construct the action in the Poincare frame in terms of their coefficients. Applying these results in holography, we find that the four-derivative terms in the supergravity action lead to corrections in the conformal anomalies of the dual 4d N = 1 SCFT. We also analyze the corrections to the entropy of supersymmetric black string solutions and discuss the explicit embeddings of 5d supergravity in string and M-theory to determine the higher-derivative coefficients in terms of microscopic parameters.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Cristopher Beem, Wolfger Peelaers
Summary: We conducted a preliminary investigation into twisted A(2n) theories of class S and found that these theories can achieve various models of Argyres-Douglas type using regular punctures. We performed an in-depth analysis of all twisted A(2) trinion theories, examined their interrelations through partial Higgsing, and discussed some of their generalized S-dualities.
Article
Physics, Multidisciplinary
Nikolay Bobev, Junho Hong, Valentin Reys
Summary: We present a simple closed form expression for the topologically twisted index of the ABJM theory, which is a function of the magnetic fluxes and complex chemical potentials valid at fixed k and to all orders in the 1/N expansion. This has important implications for holography and the microscopic entropy counting of supersymmetric static AdS(4) black holes.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Mathematical
Christopher Beem, Sujay Nair
Summary: This paper discusses the construction of a rich family of chiral algebras of class S, which are vertex operator algebras associated with four-dimensional N = 2 superconformal field theories. The construction method proposed by Tomoyuki Arakawa is remarkably uniform and applicable to both simply laced and non-simply laced Lie algebras. However, in the case of non-simply laced Lie algebras, the resulting vertex operator algebras do not correspond clearly to known four-dimensional theories. The paper also addresses the inclusion of outer automorphism twist lines in the standard realization of class S theories and proposes definitions for most chiral algebras of class S with such twist lines. The proposed definitions pass consistency checks and highlight important open problems.
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2023)
Article
Physics, Particles & Fields
Nikolay Bobev, Sunjin Choi, Junho Hong, Valentin Reys
Summary: We study the limit of the superconformal index of the ABJM theory on S-1 x S-2 with a small circle size compared to the sphere radius. We find closed form expressions for the leading terms in this limit, valid to all orders in the 1/N expansion. By rewriting the superconformal index, we establish a connection with the Bethe Ansatz Equations that govern the topologically twisted index. Applying the same technique, we extend these results to the superconformal index of 3d N = 4 SYM coupled to one adjoint and N-f fundamental hypermultiplets. The implications of our findings for holography and charged rotating black holes in AdS(4) are discussed.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Nikolay Bobev, Junho Hong, Valentin Reys
Summary: This study investigates the large N limit of supersymmetric partition functions in the U(N)(k) x U(N)(-k) ABJM theory using supersymmetric localization. A conjecture for an explicit expression of the partition function on the U(1) x U(1) invariant squashed sphere with real masses is proposed, which is valid to all orders in the large N limit and involves an Airy function. Non-trivial tests of this conjecture are presented. Furthermore, an explicit compact expression for the topologically twisted index of the ABJM theory at fixed k is derived, which is valid to all orders in the 1/N expansion. These results are used to derive the topologically twisted index and the sphere partition function in the 't Hooft limit, corresponding to genus g type IIA string theory free energies to all orders in the alpha ' expansion. The implications of these results for holography and AdS(4) black hole physics are discussed.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Nikolay Bobev, Friorik Freyr Gautason, Jesse van Muiden
Summary: We construct and study several examples of continuous families of AdS4 N=1 solutions in four-dimensional maximal gauged supergravity. These solutions provide holographic descriptions for conformal manifolds of dual 3d N=1 SCFTs. The solutions can be uplifted to type IIB supergravity, where they originate from D3-branes wrapping an S-1 with an S-duality twist. We investigate the spectrum of low-lying operators in the 3d N=1 SCFTs as a function of the exactly marginal coupling, and discuss the structure of the corresponding superconformal multiplets. Using string theory techniques, we also explore additional examples of continuous families of N=1 AdS(4) vacua in type IIB and massive type IIA supergravity.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Nikolay Bobev, Vasil Dimitrov, Valentin Reys, Annelien Vekemans
Summary: Using recent results in four-derivative 5d N = 2 minimal gauged supergravity, the regularized on-shell action of the Euclidean solution in this theory that admits a Lorentzian continuation to an AdS(5) black hole with one electric charge and two angular momenta is evaluated. It is shown that the supersymmetric limit of this solution can be described purely in terms of angular momentum fugacities and the 't Hooft anomalies for the U(1)(R) R symmetry of the dual 4d N = 1 superconformal field theory using holography. This holographic calculation is in perfect agreement with recent studies of the 4d N = 1 superconformal index on the second sheet. Additionally, the leading four-derivative corrections to the Bekenstein-Hawking entropy are explicitly calculated for the black hole solution.
Article
Astronomy & Astrophysics
Christopher Beem, Palash Singh, Shlomo S. Razamat
Summary: We investigate the unflavored Schur indices of class-S theories of modest rank, and find that many of these theories can be expressed in closed-form expressions in terms of quasimodular forms of level 1 or 2. We also observe that these expressions are typically sums of quasimodular forms of different weights. For type-a(1) theories, we are able to determine the index by making a simple assumption about the family of quasimodular forms and ensuring that the result is regular as q -> 0. In higher-rank cases, a similar simple construction is not available, but we find that these indices can still be expressed in terms of mixed-weight quasimodular forms.
Article
Astronomy & Astrophysics
Christopher Beem, Carlo Meneghelli
Summary: The study introduces a new free field realization method for explaining the vertex operator algebra structure of class S superconformal field theory. This realization significantly simplifies the algebra structure and extends the outer automorphism group. Additionally, a realization of the generic subregular Drinfel'd-Sokolov W algebra of type c(2) is also provided.
