Article
Physics, Particles & Fields
Nicolo Zenoni, Roberto Auzzi, Stefania Caggioli, Maria Martinelli, Giuseppe Nardelli
Summary: An analytic static monopole solution in global AdS(4) is found, which is mapped to a falling monopole configuration in the Poincare patch. The energy-momentum tensor for the monopole quench is found to have the same functional form as a quench dual to a falling black hole. However, the spread of entanglement entropy for the monopole quench shows differences compared to the falling black hole case, as there is a competition between negative and positive contributions to the entropy increment.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Sergey Frolov, Davide Polvara, Alessandro Sfondrini
Summary: In this study, we investigate the kinematics of mixed-flux theories and consider the relativistic limit of the S matrix associated with the lightcone gauge. By completing the bootstrap program, including the dressing factors for fundamental particles and bound states, we provide an important test for the dressing factors of the full worldsheet model and gain new insights into the features of the model when the NSNS flux is low.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Multidisciplinary
Dibakar Roychowdhury
Summary: In this study, bosonic string sigma models on warped BTZ x S-3 were explored both within and beyond the plane wave limit. By using the light cone gauge and conformal gauge, the corresponding Hamiltonian and spectrum associated with the pp wave strings were obtained, revealing a constant shift and corrections due to TsT transformations along the isometries of the target space manifold. The energy positivity constraint on the CFT2 spectrum was imposed to estimate an upper bound on the shift, and it was found that the spectra obtained using both approaches were identical, demonstrating equivalence.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2021)
Article
Physics, Particles & Fields
Calum Ross, Norisuke Sakai, Muneto Nitta
Summary: The study focuses on the interactions between magnetic skyrmions on a plane, using an analytic approach to describe a skyrmion lattice. Analytical expressions for single skyrmion solutions reveal an interesting energy transition below a critical point. The interaction energy between skyrmions is found to be repulsive and follows a power law decay, unlike the exponential decay of a purely Zeeman potential term.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Tony Gherghetta, Alex Pomarol
Summary: The study reveals that small instantons are highly suppressed and ineffective in non-asymptotically-free models, due to the conservation of topological charge that prevents them from being localized near the UV boundary. Despite this limitation, non-trivial UV localized instanton-anti-instanton solutions of the Yang-Mills equations are found in the AdS bulk.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Calum Ross, Norisuke Sakai, Muneto Nitta
Summary: The phase structure of a chiral magnet in one spatial dimension with DM interactions and a potential was determined. The system exhibits ferromagnetic or spiral phases based on the values of potential parameters A and B. Spiral solutions with various periods exist in the spiral phase, with the lowest energy spiral solution representing the ground state. Phase transitions are found to be second order between spiral and homogeneous phases and between polarized and canted ferromagnetic phases.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Sergey Frolov, Anton Pribytok, Alessandro Sfondrini
Summary: In this study, we investigate the ground state energy of the lightcone AdS(3) x S-3 x T-4 superstring sigma model with twisted boundary conditions using the semi-classical approximation. By analyzing the mirror TBA equations for the superstring in the pure RR background, we calculate the ground state energy for different boundary conditions. The results show that the contribution of the gapless worldsheet modes is proportional to hL/(4L(2) - 1).
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Maite Arcos, Willy Fischler, Juan F. Pedraza, Andrew Svesko
Summary: In this study, the nucleation rates of spherical membranes were computed using AdS/CFT duality, which naturally includes the effects of strong coupling. The analysis was conducted for membrane creation in flat and de Sitter space, and instanton methods were used to calculate the rate of nucleation.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Ysla F. Adans, Guilherme Franca, Jose F. Gomes, Gabriel V. Lobo, Abraham H. Zimerman
Summary: The paper investigates the negative part of the KdV hierarchy and explores its connections with the mKdV hierarchy. By introducing a gauge extension of the Miura transformation constructed using affine Lie algebra, the study reveals several new types of relations among the negative flows, resulting in novel integrable systems.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
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, Particles & Fields
Osamu Fukushima, Jun-ichi Sakamoto, Kentaroh Yoshida
Summary: The Faddeev-Reshetikhin (FR) model was derived from a four-dimensional Chern-Simons theory with two ordered surface defects, following previous work by Costello and Yamazaki [arXiv:1908.02289]. Additionally, a trigonometric deformation of the FR model was presented by utilizing a boundary condition with an R-operator of Drinfeld-Jimbo type, extending previous work by Delduc, Lacroix, Magro, and Vicedo [arXiv:1909.13824].
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Sergey Frolov, Alessandro Sfondrini
Summary: This paper studies the properties of non-relativistic modes in the AdS3/CFT2 correspondence in lightcone gauge. These modes naturally split into chiral and anti-chiral representations. The constraints on the two-particle worldsheet S matrix are discussed in light of this split, including braiding, physical unitarity, parity, time-reversal, and crossing invariance. The implication of this split in the mirror kinematics is also commented on.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Sergey Frolov, Alessandro Sfondrini
Summary: In this paper, superstrings on the pure-Ramond-Ramond AdS(3) x S-3 x T-4 background are considered. The string hypothesis for the mirror Bethe-Yang equations is formulated using the recently-proposed dressing factors for the worldsheet S matrix, and the canonical mirror thermodynamic Bethe ansatz (TBA) equations of the model are derived. For the first time, these equations account for all massive and massless modes of the model, without resorting to any limit or special kinematics. The simplified mirror TBA equations and the Y-system of the model are also discussed.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
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
Osamu Fukushima, Jun-ichi Sakamoto, Kentaroh Yoshida
Summary: Non-abelian Toda field theories (NATFTs) are derived from a 4d Chern-Simons theory with two order defects by employing a specific asymptotic boundary condition. The 4d CS theory is characterized by a meromorphic 1-form omega, in which the order defects are located at the two simple poles of omega. The anisotropy parameter beta(2) can be identified as the distance between the two defects. Examples of the derived theories include the (complex) sine-Gordon model and the Liouville theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Timothy J. Hollowood
CONTEMPORARY PHYSICS
(2016)
Article
Physics, Multidisciplinary
Timothy J. Hollowood, J. Luis Miramontes, David M. Schmidtt
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2016)
Article
Physics, Multidisciplinary
Calan Appadu, Timothy J. Hollowood, Dafydd Price
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2017)
Article
Physics, Particles & Fields
Calan Appadu, Timothy J. Hollowood, Dafydd Price, Daniel C. Thompson
JOURNAL OF HIGH ENERGY PHYSICS
(2017)
Article
Physics, Particles & Fields
Calan Appadu, Timothy J. Hollowood, J. Luis Miramontes, Dafydd Price, David M. Schmidtt
JOURNAL OF HIGH ENERGY PHYSICS
(2017)
Article
Physics, Multidisciplinary
Galan Appadu, Timothy J. Hollowood, Dafydd Price, Daniel C. Thompson
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2018)
Article
Astronomy & Astrophysics
Timothy J. Hollowood
Article
Physics, Particles & Fields
Justin R. David, Timothy J. Hollowood, Surbhi Khetrapal, S. Prem Kumar
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Timothy J. Hollowood, J. Luis Miramontes, Dafydd Price
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Multidisciplinary
Timothy J. Hollowood, S. Prem Kumar, Andrea Legramandi
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2020)
Article
Physics, Particles & Fields
Timothy J. Hollowood, S. Prem Kumar
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Timothy J. Hollowood, S. Prem Kumar, Andrea Legramandi, Neil Talwar
Summary: In this study, the island formula and the concept of the island in the stream are used to propose a simple 'on-shell' formula for the generalized entropy calculation of Hawking radiation. This formula allows for the calculation of quantum information properties of the radiation and validation of various constraints.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Timothy J. Hollowood, S. Prem Kumar, Andrea Legramandi, Neil Talwar
Summary: In this study, we investigate the influence of grey-body factors on the computation of entropy for an arbitrary subset of the Hawking radiation from an evaporating black hole. We find that the grey-body factors allow us to analyze the role of irreversibility in the evaporation process and show that multiple saddle points dominate the entropy. These multiple saddle points can be derived from a generalization of Page's theorem that involves a nested temporal sequence of unitary averages. We also explore how irreversibility affects the monogamy entanglement problem.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Astronomy & Astrophysics
Timothy J. Hollowood, Jamie I. McDonald