Article
Physics, Particles & Fields
S. N. Sajadi, H. R. Safari
Summary: In this paper, we study uncharged, non-conformal, and anisotropic systems with strong interactions using gauge-gravity duality. We obtain an anisotropic black brane solution to a 5D Einstein-Gauss-Bonnet-Axion-Dilaton system at finite temperature and investigate its properties. We also explore transport and diffusion properties and determine the imaginary part of the heavy quark potential in a strongly coupled plasma dual to Gauss-Bonnet gravity.
EUROPEAN PHYSICAL JOURNAL C
(2023)
Article
Physics, Particles & Fields
Matteo Baggioli, Yan Liu, Xin-Meng Wu
Summary: Topological semimetals are many-body systems that exhibit novel macroscopic quantum phenomena at the intersection of high energy and condensed matter physics. In this study, the authors investigate the use of entanglement entropy as a probe for nodal topology in nodal line semimetals. They propose a generalized c-function constructed from the entanglement entropy as an order parameter for the topological quantum phase transition. Additionally, they find that the derivative of the renormalized entanglement entropy with respect to the external coupling diverges at the critical point, indicating the emergence of non-local quantum correlations. They also show that these quantum information quantities can characterize features of the quantum critical region at finite temperature.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Animesh Nanda, Adhip Agarwala, Subhro Bhattacharjee
Summary: This study investigates the phases and phase transitions of the Kitaev-Heisenberg-P model with antiferromagnetic Kitaev exchanges in the strong anisotropic limit, revealing unconventional phases and transitions proximate to a gapless critical point in the large Γ limit without topological entanglement entropy. The comprehensive understanding of the physics of anisotropic Kitaev-Heisenberg-P systems is provided through a combination of exact diagonalization calculations and field theoretic analysis.
Review
Physics, Nuclear
Stefano Bolognesi, Kenichi Konishi, Andrea Luzio
Summary: After many years of investigation, our understanding of strongly coupled chiral gauge theories is still unsatisfactory. However, recent developments involving new ideas and techniques have led to interesting results, providing new insights into these theories.
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
(2022)
Article
Physics, Particles & Fields
Sebastian Grieninger, Ashish Shukla
Summary: This study calculates all seven T-invariant second-order susceptibilities of the N = 4 supersymmetric SU(N-c) Yang-Mills plasma in thermal equilibrium using the gauge/gravity duality and Kubo formulas, providing both analytic and numerical results. The dual gravitational description for the charged plasma in thermal equilibrium without background electric and magnetic fields is determined using the asymptotically AdS(5) Reissner-Nordstrom black brane geometry, with susceptibilities extracted by studying perturbations to the bulk geometry and bulk gauge field. An estimate of the second-order transport coefficient kappa, which determines the response of the fluid to the presence of background curvature, is also presented for QCD and compared with previous determinations using different techniques.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Zhi-Hong Li, Chuan-Yin Xia, Hua-Bi Zeng, Hai-Qing Zhang
Summary: In this study, clusters of equal-sign vortices were achieved in strongly coupled systems for the first time through the realization of AdS/CFT correspondences. The appearance of these clusters is a characteristic of flux trapping mechanism, distinct from the Kibble-Zurek mechanism. Numerical results support positive correlations between vortices and demonstrate a linear dependence between vortex number and magnetic field amplitude during the 'trapping' time.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Theresa Abl, Martin Sprenger
Summary: This paper investigates the multi-Regge limit of scattering amplitudes in strongly-coupled N = 4 super Yang-Mills and finds that the set of possible excitations appearing in analytic continuation is constrained. It also shows that the BFKL eigenvalue of any possible Reggeon bound state is a multiple of the eigenvalue in the six-gluon case.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Johanna Erdmenger, Nick Evans, Werner Porod, Konstantinos S. Rigatos
Summary: A holographic model is used to study the dynamics and spectrum of composite Higgs models, showing encouraging results close to lattice simulations in terms of masses and decay constants. The model allows computation of additional observables not yet computed on the lattice and relaxation of quenched approximation, providing insights into the fermion content of realistic composite Higgs models. Additionally, a new holographic description of top partners is provided, predicting the spectrum for models with top partners proposed by Ferretti and Karateev.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Multidisciplinary
Meng Zeng, Zheng Zhu, Juven Wang, Yi-Zhuang You
Summary: In this letter, a lattice regularization method for chiral fermions in the 3-4-5-0 model of (1 + 1)D is proposed. By introducing carefully designed local interactions, the chiral fermions and their mirror partners are realized on opposite boundaries of a thin strip of (2 + 1)D lattice model. The interaction-driven gapping transition is shown to be in the Berezinskii-Kosterlitz-Thouless universality class.
PHYSICAL REVIEW LETTERS
(2022)
Article
Astronomy & Astrophysics
Ofer Aharony, Eran Palti
Summary: The study proposes a new approach to the weak gravity conjecture and attempts to compare it with conformal field theory. They found that in all tested examples, the conjecture seems to hold true, but they have not yet been able to understand why this is the case from the perspective of conformal field theory.
Article
Astronomy & Astrophysics
Shi Cheng
Summary: This study investigates the mirror symmetry of Abelian three-dimensional N = 2 theories with mixed Chern-Simons levels by transforming them into T-A,T-N theories. It reveals that T-A,T-N theories have multiple mirror dual theories with different mixed CS levels and parameters, and analyzes the mirror symmetry for theories corresponding to knots using sphere partition functions and vortex partition functions.
Article
Materials Science, Multidisciplinary
Jiajun Li, Lukas Schamriss, Martin Eckstein
Summary: Recent experiments have demonstrated the possibility of fabricating lattice electronic systems strongly coupled to quantum fluctuations of electromagnetic fields. In this study, researchers developed a high-frequency expansion to construct effective models for lattice electrons coupled to a continuum of off-resonant photon modes. They showed how the dispersion and topology of the electronic energy bands can be tuned by the cavity.
Article
Physics, Particles & Fields
M. Jarvinen, E. Kiritsis, F. Nitti, E. Preau
Summary: This article uses a (toy) model for cold and luke-warm strongly-coupled nuclear matter at finite baryon density to study neutrino transport. The complete charged current two-point correlators are calculated in the strongly-coupled medium and their impact on neutrino transport is analyzed. The full result is compared with various approximations for the current correlators and the distributions, and their successes are commented on. Further improvements are also discussed.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Simon Catterall
Summary: The proposal describes a lattice theory model capable of producing free Weyl fermions in the continuum limit using reduced staggered fermions and site parity dependent Yukawa interactions. The model successfully addresses certain discrete anomalies arising in the continuum limit and has numerical results supporting the scenario in two dimensions.
Article
Materials Science, Multidisciplinary
Markus Heckschen, Bjorn Sothmann
Summary: We study the dynamics of a three-terminal system composed of a quantum dot strongly coupled to two superconducting reservoirs and weakly coupled to a normal metal. By employing a real-time diagrammatic approach, we calculate the behavior of the proximity-induced pair amplitude on the quantum dot. Our findings reveal pronounced oscillations of the pair amplitude, which are determined by the coupling to the superconductors, as well as exponential decay on a timescale determined by the coupling to the normal metal. Furthermore, strong oscillations of the pair amplitude are observed when the system is periodically driven, both in the adiabatic and fast-driving limits. We demonstrate that the dynamics of the pair amplitude is experimentally accessible by relating it to the Josephson and Andreev current through the quantum dot.
Correction
Physics, Particles & Fields
Willy Fischler, Viktor Jahnke, Juan F. Pedraza
Summary: Minor mistakes were found in the published version of our paper, but they do not affect the main conclusions.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Umut Gursoy, Matti Jarvinen, Govert Nijs, Juan F. Pedraza
Summary: The study investigates the combined effects of anisotropy and a magnetic field in strongly interacting gauge theories using the gauge/gravity correspondence. It focuses on the interplay and competition between anisotropy and magnetic field, revealing a rich structure in the phase transitions at finite temperature. Various observables in the theory, such as the quark-antiquark potential, shear viscosity, entanglement entropy, and butterfly velocity are explored, showing their effectiveness as probes for distinguishing between magnetic field and anisotropy effects in the plasma states.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Multidisciplinary
Juan F. Pedraza, Andrea Russo, Andrew Svesko, Zachary Weller-Davies
Summary: The passage discusses the reformulation of the complexity = volume conjecture using the continuous min flow-max cut principle and the nesting property, as well as the concept of optimizing with Lorentzian flows. It also introduces the concept of bounding the rate of complexity and capturing the role of suboptimal tensor networks.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Particles & Fields
Juan F. Pedraza, Andrea Russo, Andrew Svesko, Zachary Weller-Davies
Summary: Holographic entanglement entropy has recently been reformulated as Lorentzian flows. By studying the nesting of Lorentzian flows, we have explored several properties of holographic complexity, including the lower bound of complexity rate and the optimization process of complexity. We have provided explicit geometric realizations of Lorentzian flows in AdS backgrounds and discussed their behavior near the singularity in a black hole interior. We have also proposed a refined notion of complexity and explained the significance of Lorentzian threads.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Cesar A. Agon, Juan F. Pedraza
Summary: In this paper, a novel method for interpreting quantum corrections to holographic entanglement entropy is proposed, which utilizes the concept of generalized flow and can handle sources or sinks in the bulk geometry. Furthermore, the quantum corrections are described in terms of information theory using a set of quantum bit threads. The proposed method is shown to satisfy known von Neumann entropy inequalities and has applications in investigating the holographic monogamy.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Astronomy & Astrophysics
Juan F. Pedraza, Andrea Russo, Andrew Svesko, Zachary Weller-Davies
Summary: Inspired by the universality of computation, we propose a principle of spacetime complexity, suggesting that gravity emerges as a result of spacetime optimizing the computational cost of its own quantum dynamics. This principle is explicitly realized in the Anti-de Sitter/Conformal Field Theory correspondence, where complexity is understood in terms of state preparation via Euclidean path integrals, and Einstein's equations arise from the laws of quantum complexity. We visualize spacetime complexity using Lorentzian threads, which conceptually represent the operations required to prepare a quantum state in a tensor network discretizing spacetime. Thus, spacetime itself evolves through optimized computation.
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
(2022)
Article
Physics, Particles & Fields
Alberto Guijosa, Yaithd D. Olivas, Juan F. Pedraza
Summary: This article explores the tension between two concepts in holography and proposes a solution with holographic rememorization. By introducing an infrared boundary action, the reduced density matrix can be fully identified. The article also discovers an interesting connection with AdS/BCFT and provides a simple example of equivalence in this context.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
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
Roberto Emparan, Juan F. Pedraza, Andrew Svesko, Marija Tomasevic, Manus R. Visser
Summary: This study investigates the generation and thermodynamic properties of quantum black holes in three-dimensional de Sitter space, using both braneworld holography and non-holographic perturbative analysis. The results reveal similarities to classical four-dimensional black holes and provide insights into the holographic dual description of de Sitter spacetimes.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Jan de Boer, Viktor Jahnke, Keun-Young Kim, Juan F. Pedraza
Summary: We construct worldsheet traversable wormholes by considering the effects of a double-trace deformation, coupling the endpoints of an open string in AdS space. The operator deforming the theory is irrelevant and makes the boundaries bend inward toward the IR. This effect renders the teleportation protocol more efficient and facilitates the transfer of information between the members of the dual Bell pair. We compare our results with those obtained with the standard double-trace deformation introduced by Gao, Jafferis and Wall.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Umut Guersoy, Juan F. Pedraza, Guim Planella Planas
Summary: The study investigates holographic entanglement through microscopic threads based on the Ryu-Takayanagi prescription. It explores general entangling regions in AdS4 and reformulates bit threads as a magnetic-like field generated by a current. However, the prescription breaks down for general entangling regions due to the nonlocality of the corresponding modular Hamiltonians.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Rafael Carrasco, Juan F. Pedraza, Andrew Svesko, Zachary Weller-Davies
Summary: The principle of spacetime complexity in quantum gravity suggests that gravitational physics emerges from spacetime seeking to optimize the computational cost of its quantum dynamics. This principle has been expanded upon in two significant directions, including higher-derivative gravitational equations and semiclassical equations. The results demonstrate the robustness of spacetime complexity as a guiding principle to understand gravity in terms of quantum computation.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Juan F. Pedraza, Andrew Svesko, Watse Sybesma, Manus R. Visser
Summary: This article introduces the application of the island formula, which obtains the unitary Page curve of Hawking radiation entropy by extremizing generalized entropy. The article derives the application of this formula in different gravity theories through different methods.
Article
Physics, Particles & Fields
Brandon S. DiNunno, Niko Jokela, Juan F. Pedraza, Arttu Ponni
Summary: This study investigates various information theoretic quantities in distinguishing between different charged sectors in fractionalized states of large-N gauge theories, focusing on a holographic (2 + 1)-dimensional strongly coupled electron fluid. The results indicate the universality of the butterfly velocity in describing momentum and charge diffusion near a black hole horizon. A generalized entanglement functional is proposed to address insensitivity to electric flux, offering a coarse grained measure of entanglement in the boundary theory by tracing over charge degrees of freedom. Additionally, a candidate entropic c-function is constructed to efficiently account for charged degrees of freedom across different energy scales.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Cesar A. Agon, Elena Caceres, Juan F. Pedraza
Summary: In the context of holography, entanglement entropy can be studied using extremal surfaces or bit threads, a divergenceless vector field approach. This paper develops a new method for metric reconstruction based on the latter, showing advantages over existing methods. It is demonstrated that perturbed thread configurations can encode metric information in a highly nonlocal way, but a canonical choice for perturbations can be made for boundary regions with a local modular Hamiltonian. The Iyer-Wald formalism provides a natural candidate for a canonical local perturbation, facilitating the inversion of a linear differential operator for metric reconstruction.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
