Article
Physics, Particles & Fields
Rhucha Deshpande, Oleg Lunin
Summary: In this paper, we study neutral black branes with flat and curved worldvolumes in the presence of a negative cosmological constant. We reduce the governing equations to a second-order ODE and perform asymptotic expansions. We also analyze regular geometries with the same symmetries as the branes and show that their dynamics is governed by the Abel equation.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Iosif Bena, Nejc Ceplak, Shaun Hampton, Yixuan Li, Dimitrios Toulikas, Nicholas P. Warner
Summary: We construct solutions with zero horizon area that maintain the spherical symmetry and have the same charges as a three-charge F1-NS5-P Type-IIA black hole. These solutions can be interpreted as the long-throat limit of smooth, horizonless microstate geometries called superstrata, revealing the absence of a finite-size horizon even in the singular corners of the moduli space of three-charge microstate geometries.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Pinaki Dutta, Kamal L. Panigrahi, Balbeer Singh
Summary: We study the chaos in the dynamics of a pulsating string near a non-extremal black p-brane (p=5 and p=6) using the Fast Lyapunov indicator (FLI) and Poincare section. The initial position of the string, as well as the energy and charge, determine three modes of dynamics: capture, escape to infinity, and quasiperiodic. Additionally, the winding number (n) influences the chaotic behavior of the dynamics.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Subhroneel Chakrabarti, Suresh Govindarajan, P. Shanmugapriya, Yogesh K. Srivastava, Amitabh Virmani
Summary: This paper extends previous studies on black hole hair modes in N = 4 CHL orbifold models, identifying characteristics of these modes and achieving consistency in microscopic analysis.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Toshifumi Noumi, Hibiki Satake
Summary: This study investigates the higher derivative corrections to black brane thermodynamics and their implications for the weak gravity conjecture for p-form gauge fields. The results show that higher derivative corrections decrease the tension-to-charge ratios of extremal black branes, in line with the weak gravity conjecture, if four-derivative couplings follow scattering positivity bounds. It is also demonstrated that entropy corrections in the microcanonical ensemble are positive under the same assumptions.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Sunjin Choi, Seok Kim, Eunwoo Lee, Jehyun Lee
Summary: In this study, we investigate the properties of AdS5 black holes using a recently proposed giant graviton expansion formula for the index of U(N) maximal super-Yang-Mills theory. By performing a saddle point analysis and maximizing the large N entropy at fixed charges and giant graviton numbers nI, we obtain consistent results with the dual black hole entropy in the small black hole limit. We also provide an explanation for the dual black hole entropy at general sizes by assuming a cancellation mechanism for various giant graviton indices.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Aradhita Chattopadhyaya, Jan Manschot, Swapnamay Mondal
Summary: The study focuses on determining partition functions for scaling black hole solutions with multiple black hole singularities, showing that the partition function is a mock modular form of depth two and completing the appropriate non-holomorphic terms using generalized error functions.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Sunjin Choi, Saebyeok Jeong, Seok Kim, Eunwoo Lee
Summary: In this study, large N saddle points of the matrix model for the N = 4 Yang-Mills index dual to the BPS black holes in AdS(5) x S-5 are constructed in two different setups. Linear eigenvalue distributions and areal eigenvalue distributions are explored when the chemical potentials for the angular momenta are collinear and not collinear, respectively. Additionally, a class of multicut saddle points with nontrivial filling fractions is constructed, and the connection between the Bethe ansatz equation and the saddle point equation is discovered.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Muneto Nitta, Kunihito Uzawa
Summary: The recent discovery of an explicit solution of a black hole on the resolved orbifold C-n/Z(n) allows investigation into the existence of p-branes on the orbifold, confirming the prediction of black p-branes on various orbifolds. The solutions are extremal with regular horizons and near horizon geometries AdS(p+2) x S2n-1/Z(n).
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
A. Belhaj, H. Belmahi, M. Benali, W. El Hadri, H. El Moumni, E. Torrente-Lujan
Summary: This study investigates the shadow behaviors of five dimensional black holes embedded in type IIB superstring/supergravity inspired spacetimes, analyzing geometrical properties such as shapes and sizes. It is found that physical parameters significantly distort the shapes and decrease the size of the shadows. The research also delves into geometrical observables and energy emission rate aspects.
Article
Physics, Particles & Fields
Georgios K. Karananas, Alex Kehagias, John Taskas
Summary: A novel four-dimensional black hole model is proposed, with expected growth of entanglement entropy before Page's time, but later modified significantly by emergent islands, leading to saturation at a finite value. The study reveals that the entanglement entropy changes along the RG flow with respect to the two-dimensional worldsheet length scale.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Iosif Bena, Daniel R. Mayerson
Summary: The article explains how to calculate the gravitational mass and angular momentum multipoles of the most general non-extremal four-dimensional black hole, as well as for generic supersymmetric four-dimensional microstate geometries and multi-center solutions. While many multipoles vanish for Kerr black holes and BPS black holes, embedding them in String Theory and deforming them slightly can yield an infinite set of ratios of vanishing multipoles that remain finite and independent of the direction of deformation.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Pablo A. Cano, Tomas Ortin, Alejandro Ruiperez, Matteo Zatti
Summary: In this study, we investigate the extremal black hole solutions of the Heterotic Superstring effective action at first order in alpha' with 3 and 4 charges of arbitrary signs. It is found that the choices of relative signs of these charges affect supersymmetry, and the alpha' corrections differ significantly depending on how supersymmetry is broken. Through providing fully analytic O(alpha') solutions, the charges, masses, and entropies are computed, and their invariance under alpha'-corrected T-duality transformations is checked.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Iosif Bena, Shaun D. Hampton, Anthony Houppe, Yixuan Li, Dimitrios Toulikas
Summary: The entropy of the three-charge NS5-F1-P black hole in Type IIA string theory is derived from the splitting of N(1)F1 strings into N1N5 little strings, which act as independent momentum carriers. In M theory, these little strings correspond to strips of M2 brane connecting pairs of parallel M5 branes. Taking into account the backreaction of the little strings on the M5 branes results in a maze-like structure, where momentum waves can be added. Adding momentum waves to the little strings forms a momentum-carrying brane configuration called a super-maze, which partially preserves 16 supercharges. It is expected that the backreaction of the super-maze will lead to a new class of horizonless black-hole microstate solutions, preserving the rotational symmetry of the black-hole horizon and carrying v5/6 of its entropy.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Pierre Heidmann
Summary: A non-BPS linear ansatz is derived using the charged Weyl formalism in string and M-theory backgrounds. The ansatz describes static and axially-symmetric solutions with an arbitrary number of non-BPS sources, corresponding to various brane, momentum, and KKm charges. Several families of solutions, such as chains of black holes and smooth bubbling geometries, are constructed and their physics is studied.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
M. J. Duff, J. X. Lu, R. Percacci, C. N. Pope, H. Samtleben, E. Sezgin
Article
Physics, Particles & Fields
Qiang Jia, J. X. Lu, Xiao-Jun Tan
Article
Physics, Particles & Fields
Huiquan Li, J. X. Lu
JOURNAL OF HIGH ENERGY PHYSICS
(2016)
Article
Physics, Particles & Fields
J. X. Lu
JOURNAL OF HIGH ENERGY PHYSICS
(2017)
Article
Physics, Particles & Fields
J. X. Lu
Article
Astronomy & Astrophysics
J. X. Lu, Jun Ouyang, Shibaji Roy
Article
Physics, Particles & Fields
J. X. Lu, Ran Wei
JOURNAL OF HIGH ENERGY PHYSICS
(2013)
Article
Astronomy & Astrophysics
J. X. Lu
Article
Astronomy & Astrophysics
Qiang Jia, J. X. Lu
Article
Physics, Particles & Fields
J. X. Lu
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Qiang Jia, J. X. Lu, Zihao Wu, Xiaoying Zhu
Article
Physics, Multidisciplinary
Yi-Fei Chen, J. X. Lu, Nan Zhang
Summary: In this study, we present a detailed examination of the process of dynamically generating an M2 brane in a pp-wave background with maximal spacetime SUSY. We find that there are three kinds of dynamical solutions depending on the excess energy, and once the excess energy surpasses a critical value, there exists a single solution with independent dynamical behavior.
COMMUNICATIONS IN THEORETICAL PHYSICS
(2022)
Article
Physics, Multidisciplinary
Yi-Fei Chen, Jian-Xin Lu
Summary: We studied the dynamical Myers effect by allowing the fuzzy or dynamical dielectric brane coordinates to vary with time, finding three novel types of dynamical spherical dielectric branes with different excess energies. Each type exhibits unique characteristics in terms of oscillation patterns and time dependence, offering insights into the creation and annihilation processes of dielectric branes in various scenarios.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2022)
Article
Physics, Particles & Fields
J. X. Lu, Nan Zhang
Summary: In this paper, we report the discovery of two new systems that can produce a significantly larger rate of open string pair production under more relaxed conditions. By considering D3 as our (1 + 3) dimensional world and placing the non-threshold bound state (F, D1) or (D3, (F, D1)) parallel in the transverse directions, this achievement is made possible.
Review
Physics, Multidisciplinary
Lu Jian-Xin, Zhang Nan
ACTA PHYSICA SINICA
(2020)