Article
Physics, Particles & Fields
Daniel Elander, Michele Frigerio, Marc Knecht, Jean-Loic Kneur
Summary: This article continues the study of strongly-coupled, approximately scale-invariant gauge theories with a large number of flavours, focusing on their application in the composite-Higgs scenario. By extending the holographic models, the authors compute the spectrum of composite fermionic states and observe the presence of light fermionic bound states in certain regions of parameter space. Additionally, a dense spectrum of states is observed in the presence of multi-scale dynamics induced by a large backreaction of bulk scalars on the geometry. The linear coupling between composite and elementary fermions is also studied, revealing that it can be dangerously irrelevant in certain circumstances. Finally, the partially composite spectrum is computed and its potential phenomenological implications, such as for top-quark partners, are assessed.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Elena Caceres, Rodrigo Castillo Vasquez, Alejandro Vilar Lopez
Summary: The study derives the holographic entanglement entropy functional for a gravitational theory up to cubic order in the Riemann tensor, showcasing the differences between minimal and non-minimal splittings. The results are applied to specific examples and show that causal wedge inclusion is respected for a wide range of values of the cubic coupling.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Venkatesa Chandrasekaran, Netta Engelhardt, Sebastian Fischetti, Sergio Hernandez-Cuenca
Summary: We have discovered a new on-shell replica wormhole and shown that it has lower action than the disconnected one. The stability of this replica wormhole depends on the signature of allowed perturbations. We have also introduced a new method for computing the on-shell action of replicated manifolds and found evidence that quantum corrections can sometimes stabilize this new saddle.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Andrea Legramandi, Carlos Nunez
Summary: We present three infinite families of supersymmetric Type IIB backgrounds with AdS(4), AdS(3) and AdS(2) factors, which are dual to SCFTs in 3, 2 and 1 space-time dimensions respectively. These backgrounds emerge at low energies through a twisted compactification of five-dimensional N = 1 SCFTs on hyperbolic spaces. The holographic flows across dimensions are explicitly computed. We also discuss a family of SUSY breaking backgrounds corresponding to a QCD-like quiver with massive (bi)fundamental matter, and compute some field theoretical observables for these theories at the fixed points and along the flow.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Robert de Mello Koch, Garreth Kemp
Summary: The principle of the holography of information states that a copy of all the information available on a Cauchy slice is also available near the boundary. This redundancy in the theory is already present at low energy.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Salomeh Khoeini-Moghaddam, Farzad Omidi, Chandrima Paul
Summary: The study explores aspects of Hyperscaling Violating geometries at finite cutoff and zero temperature, focusing on holographic entanglement entropy, mutual information, and entanglement wedge cross section for strip-shaped entangling regions. Results show interesting features of HMI and EWCS compared to very small cutoff case, with HMI being a decreasing function and EWCS showing concavity changes. The location of phase transition and finite values are found to depend on the cutoff in this scenario.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Eyoab Bahiru
Summary: This article discusses the algebra of operators in the AdS-Rindler wedge, particularly in AdS(5)/CFT4. The algebra at the N = ∞ limit is explicitly constructed and its Type III1 nature is examined. The theory's 1/N corrections are considered, and a novel method of renormalizing the Ryu-Takayanagi surface area is utilized to renormalize several divergences, resulting in the algebra becoming Type II∞. This allows for the association of a density matrix with any state in the Hilbert space, leading to a von Neumann entropy.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
M. Ali-Akbari, M. Asadi, B. Amrahi
Summary: We evaluate the holographic entanglement entropy, HEE, holographic mutual information, HMI, and holographic entanglement of purification, EoP, in a non-conformal model at zero and finite temperature. We find that the non-conformal effects decrease the redefined HEE and increase the redefined HMI and EoP in the all studied regimes. The temperature effects increase (decrease) the redefined HEE (HMI) in the all studied regimes while it has no definite effect on the redefined EoP. From the information point of view, we find that in the vicinity of the phase transition the zero temperature state is more favorable than the finite temperature one.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Roberto Auzzi, Stefano Baiguera, Sara Bonansea, Giuseppe Nardelli
Summary: Research has found that the holographic complexity of formation for the AdS(3) 2-sided Randall-Sundrum model and the AdS(3)/BCFT2 models is logarithmically divergent according to the volume conjecture, while it is finite using the action proposal. One might be tempted to conclude that the UV divergences of the volume and action conjectures are always different for defects and boundaries in two-dimensional conformal field theories. However, in Janus AdS(3), it is found that both volume and action proposals provide the same kind of logarithmic divergences.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Stefano Antonini, Petar Simidzija, Brian Swingle, Mark Van Raamsdonk
Summary: This paper explores the effects of wormholes in flat big bang-big crunch cosmologies on the state of the coupled pair of 3D theories, and provides methods to reconstruct the wormhole geometry from certain physical quantities.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Arnab Kundu, Vinay Malvimat, Ritam Sinha
Summary: By calculating the Krylov Complexity of primary operators in a 2d CFT, we observe different behaviors based on whether the scaling dimension of the operators exceeds the critical dimension, suggesting a close relationship between operator growth, K-complexity, and the underlying entanglement structure.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Yi-Yu Lin, Jia-Rui Sun, Yuan Sun, Jie-Chen Jin
Summary: This study provides a bit thread description of the AdS/BCFT setup, characterizing the specific entanglement details between different parts of the system with an entanglement island. The research also distinguishes between the fine-grained PEE and the semi-classical PEE in the context of an island.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Shi-Fa Guo, Hai-Shan Liu, H. Lue, Yi Pang
Summary: By constructing a class of charged AdS boson star solutions, we found that the leading coefficient c(3/2)(k) exhibits a monotonic increasing behavior with respect to k, showing linear growth when k is small and approaching maximal value with a decreasing rate as k tends to infinity. A closed form expression fitting the numerical data within 10(-4) accuracy for the entire range of k was also obtained.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Eyoab Bahiru, Niloofar Vardian
Summary: We investigate entanglement wedge reconstruction in AdS/CFT using the Petz recovery channel. For a spherical region on the boundary, we demonstrate that the Petz map can reproduce the AdS-Rindler HKLL reconstruction. Additionally, for a generic subregion of the boundary, we are able to obtain the same boundary representation of a local bulk field lying in the entanglement wedge as the one proposed earlier in [1, 2] using the properties of the modular flow.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Bowen Chen, Bartlomiej Czech, Jan de Boer, Lampros Lamprou, Zi-zhi Wang
Summary: We construct operators in holographic two-dimensional conformal field theory that locally act as arbitrary bulk spacelike vector fields in the code subspace. The key aspect of this construction is the interplay between parallel transport in the bulk spacetime and in kinematic space. We outline the challenges faced when extending this construction to timelike vector fields and also provide several applications, such as boundary formulations of the bulk Riemann tensor, dreibein, spin connection, and holographic complexity.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Mathematical
Michael Freedman, Matthew Headrick
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2017)
Article
Astronomy & Astrophysics
Matthew Headrick, Veronika E. Hubeny
CLASSICAL AND QUANTUM GRAVITY
(2018)
Article
Physics, Particles & Fields
Matthew Headrick, Ali Nassar
ADVANCES IN THEORETICAL AND MATHEMATICAL PHYSICS
(2013)
Article
Astronomy & Astrophysics
Matthew Headrick, Sam Kitchen, Toby Wiseman
CLASSICAL AND QUANTUM GRAVITY
(2010)
Article
Astronomy & Astrophysics
Matthew Headrick
Article
Astronomy & Astrophysics
Matthew Headrick
Article
Astronomy & Astrophysics
Matthew Headrick
Article
Astronomy & Astrophysics
Cesar A. Agon, Matthew Headrick, Daniel L. Jafferis, Skyler Kasko
Article
Physics, Particles & Fields
Robert Callan, Jianyang He, Matthew Headrick
JOURNAL OF HIGH ENERGY PHYSICS
(2012)
Article
Physics, Particles & Fields
Matthew Headrick, Veronika E. Hubeny, Albion Lawrence, Mukund Rangamani
JOURNAL OF HIGH ENERGY PHYSICS
(2014)
Article
Physics, Particles & Fields
Matthew Headrick
JOURNAL OF HIGH ENERGY PHYSICS
(2014)
Article
Physics, Mathematical
Matthew Headrick, Barton Zwiebach
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2020)
Article
Physics, Mathematical
Matthew Headrick, Barton Zwiebach
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2020)
Article
Physics, Mathematical
Matthew Headrick, Jesse Held, Joel Herman
Summary: This study investigates the ability to compute the entropy of a given set of boundary regions using a single thread configuration under different density bounds. It is shown that under the most stringent bound, non-crossing regions can be locked, but crossing regions cannot. Under a less stringent density bound, a crossing pair can be locked, and it is conjectured that any set of regions not containing a pairwise crossing triple can be locked, analogous to networks.
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2022)