Article
Physics, Particles & Fields
Jewel K. Ghosh, Elias Kiritsis, Francesco Nitti, Lukas T. Witkowski
Summary: The study examines Coleman-de Luccia processes for AdS to AdS decays in Einstein-scalar theories, interpreting these tunneling processes as vev-driven holographic RG flows of a quantum field theory on de Sitter space-time. The existence of Coleman-de Luccia tunneling solutions in potentials with false AdS vacua is found to be tied to the presence of exotic RG flows in the same potentials. Additionally, it is argued that even when such instantons exist, they do not imply an instability of the same theory on flat space or on R x S-3.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Satvir Kaur, Chandan Mondal, Harleen Dahiya
Summary: This study presents leading-twist quark transverse momentum-dependent parton distribution functions for spin-1 targets like the rho-meson in the light-front framework. It evaluates the predictions in the light-front holographic model and compares them with the light-front quark model. The study also analyzes the QCD evolution of the distribution functions and discusses the positivity bounds on them.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Jorge Casalderrey-Solana, Christian Ecker, David Mateos, Wilke van der Schee
Summary: The study focuses on the dynamics of a strongly-coupled gauge theory in de Sitter space, revealing its non-equilibrium nature and the emergence of a unique relationship in the asymptotic state. The distinction between event and entanglement horizons in the late-time solution is also highlighted.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Chris Akers, Geoff Penington
Summary: The study shows that a naive application of the quantum extremal surface (QES) prescription can lead to paradoxes and requires corrections at leading order. Corrections occur when there is a second QES with larger generalized entropy than the minimal QES at leading order, and a large amount of highly incompressible bulk entropy between the surfaces. The source of these corrections is traced back to a failure in the assumptions used in the derivation of the QES prescription using the replica trick, and a more careful derivation correctly computes the corrections.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Leonardo Pipolo de Gioia, Ana-Maria Raclariu
Summary: We identify an eikonal regime in celestial CFT2 where massless 2-2 scattering is dominated by t-channel exchange. We derive a formula that resums exchanges of arbitrary integer spin to all orders in the coupling. The resulting eikonal phase resembles that in flat space with energy powers replaced by weight-shifting operators on the celestial sphere. We independently compute the celestial two-point function for a scalar in a shockwave background and find agreement with the prediction from the celestial eikonal formula for graviton exchange to leading order in the gravitational coupling.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Jiayue Yang, Andrew R. Frey
Summary: This study investigates the holographic complexity of CFTs compactified on a circle and proposes a scaling law for the complexity based on the radius of the circle.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Jose J. Fernandez-Melgarejo, Javier Molina-Vilaplana
Summary: This work provides a method to study the entanglement entropy for non-Gaussian states in interacting quantum field theories, utilizing non-Gaussian variational trial wavefunctions and exact nonlinear canonical transformations. The calculability demonstrated by these variational ansatze allows for computation of the entanglement entropy, showing that two-point correlation functions determine the entanglement entropy in free theories and can be replaced by nonperturbatively corrected counterparts in interacting cases. Calculations are performed for half space and compact regions in the phi(4) scalar field theory in 2D, with an analysis of the role of higher order correlators in the results demonstrating satisfaction of strong subadditivity.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Ran Li, Jin Wang
Summary: This article investigates the vacuum decay and bubble nucleation in anti-de Sitter black holes. By calculating the Euclidean action and providing numerical results of tunneling rates, it is revealed that black holes can act as a source of inhomogeneities and accelerate the vacuum decay and bubble nucleation in anti-de Sitter spacetime.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Anastasia A. Golubtsova, Marina K. Usova
Summary: In this study, we investigate holographic RG flows in a 3d supergravity model using the methods of dynamical system theory. By reducing the gravity equations of motion to an autonomous dynamical system, we identify equilibrium points and analyze their stability. We also reconstruct asymptotic solutions near critical points, which consist of two types: asymptotically AdS metrics and hyperscaling violating metrics. Furthermore, we describe possible RG flows between an unstable (saddle) UV fixed point and a stable (stable node) IR fixed point, as well as analyze bifurcations in the model.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Physics, Particles & Fields
Hynek Paul, Eric Perlmutter, Himanshu Raj
Summary: In this paper, we study a closed-form solution for a family of integrated four-point functions involving stress tensor multiplet composites of arbitrary R-charge in four-dimensional N = 4 super Yang-Mills theory with gauge group SU(N). We show that these integrated correlators are equivalent to a one-dimensional semi-infinite lattice of harmonic oscillators with nearest-neighbor interactions, evolving over the fundamental domain of SL(2, Z). The solution is exact in the R-charge p, rank N, and complexified gauge coupling tau, allowing for a systematic and non-perturbative large charge expansion.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Carlos Cardona, Cynthia Keeler, William Munizzi
Summary: In this work, the lightcone bootstrap was applied to study the four-point function of scalars in two-dimensional conformal field theory, including the entire Virasoro symmetry. A kernel ansatz was proposed to generalize the spectral decomposition of the Virasoro vacuum, extending it beyond the large dimension limit.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Hynek Paul, Eric Perlmutter, Himanshu Raj
Summary: We study integrated four-point functions of half-BPS operators in 4D N=4 SYM with gauge group SU(N). These observables, defined by spacetime integrals of (O2O2OPOP) with O-P as a superconformal primary of charge p, are computable by supersymmetric localization but are non-trivial functions of the complexified gauge coupling tau. We find explicit results for several classes of these observables, exactly as a function of N and tau, and analyze their properties using the SL(2, Z) spectral decomposition. Our computations include the full matrix of integrated correlators at low values of p and an infinite class of correlators involving operators of arbitrary p.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Shao-Kai Jian, Brian Swingle
Summary: The evolution of Renyi entropy in a system of two coupled Brownian SYK clusters was studied, revealing linear growth and saturation of entropy in one cluster. The Page curve was obtained through path integral saddle point analysis and operator dynamics analysis, with a master equation derived from the dynamics' Brownian character controlling the operator dynamics and providing the Page curve for purity. A complementary path integral method identified that replica diagonal and non-diagonal saddles account for the linear growth and saturation of Renyi entropy.
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
Astronomy & Astrophysics
Ting Zhang, Ya-Bo Wu, Guang-Zhi Xu, Cheng-Yuan Zhang
Summary: In this work, a holographic antiferromagnetism model is constructed in the four-dimensional Lifshitz black hole by introducing two real antisymmetric tensor fields coupling to the background gauge field strength and interacting with each other. The effects of Lifshitz dynamical exponent z on the paramagnetism-antiferromagnetism phase transition are investigated. It is found that there is still a phase transition in asymptotically Lifshitz space-time in the probe limit. The critical temperature and staggered magnetization decrease with increasing z, making the phase transition harder to occur. The presence of an external magnetic field results in a peak in magnetic susceptibility at the critical temperature, and increasing values of z enhance the peak. In the case of a strong external magnetic field, a critical magnetic field B-c exists in the antiferromagnetic phase, where the system transitions to the paramagnetic phase. Moreover, increasing z leads to an increase in B-c.
Article
Materials Science, Multidisciplinary
David Tong, Carl Turner
Article
Astronomy & Astrophysics
David Tong, Kenny Wong
Article
Physics, Multidisciplinary
Andreas Karch, David Tong
Article
Physics, Particles & Fields
David Tong
JOURNAL OF HIGH ENERGY PHYSICS
(2017)
Article
Physics, Particles & Fields
Andreas Karch, Brandon Robinson, David Tong
JOURNAL OF HIGH ENERGY PHYSICS
(2017)
Article
Astronomy & Astrophysics
Stefano Bolognesi, David Tong
CLASSICAL AND QUANTUM GRAVITY
(2012)
Article
Astronomy & Astrophysics
Mike Blake, David Tong
Article
Physics, Multidisciplinary
David Tong, Kenny Wong
PHYSICAL REVIEW LETTERS
(2013)
Article
Physics, Particles & Fields
Gary T. Horowitz, Jorge E. Santos, David Tong
JOURNAL OF HIGH ENERGY PHYSICS
(2012)
Article
Physics, Particles & Fields
Stefano Bolognesi, Joao N. Laia, David Tong, Kenny Wong
JOURNAL OF HIGH ENERGY PHYSICS
(2012)
Article
Physics, Particles & Fields
Mike Blake, Stefano Bolognesi, David Tong, Kenny Wong
JOURNAL OF HIGH ENERGY PHYSICS
(2012)
Article
Physics, Particles & Fields
Gary T. Horowitz, Jorge E. Santos, David Tong
JOURNAL OF HIGH ENERGY PHYSICS
(2012)
Article
Physics, Particles & Fields
Benjamin Beri, David Tong, Kenny Wong
JOURNAL OF HIGH ENERGY PHYSICS
(2013)
Article
Materials Science, Multidisciplinary
Nick Dorey, David Tong, Carl Turner