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
Astronomy & Astrophysics
M. A. L. Capri, S. P. Sorella, R. C. Terin
Summary: In the refined Gribov-Zwanziger setup, a composite BRST invariant fermionic operator coupled to the inverse of the Faddeev-Popov operator is introduced, leading to the construction of an effective BRST invariant action in Euclidean space-time. This enables the study of the behavior of the fermion propagator in the infrared region within the class of linear covariant gauges. The aforementioned action is proven to be renormalizable to all orders through the algebraic renormalization procedure.
Article
Astronomy & Astrophysics
Pok Man Lo, Krzysztof Redlich, Chihiro Sasaki
Summary: The study focuses on the deconfinement phase transition in an SU(Nc) gauge theory, analyzing fluctuations of the order parameter and showing peculiarities in curvature masses and observables near the transition temperature. The competition between different forces is sensitive to dynamics assumptions, highlighting an interesting link between vacuum structure and gluon/ghost propagator properties.
Article
Physics, Particles & Fields
Lorenzo Coccia
Summary: In the large N limit, we compute the topologically twisted index of the 3d T[SU(N)] theory, utilizing recent results from five dimensional quiver gauge theories. Our calculation correctly reproduces the entropy of the universal black hole that can be embedded in the holographically dual solution.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Chao Wu, Yanqi Wang
Summary: This paper derives the 7 dynamical second order transport coefficients of nonconformal fluids corresponding to Dp-branes with one or more compactified world-volume directions via fluid/gravity correspondence. The derived coefficients satisfy the Haack-Yarom, Romatschke, and Kleinert-Probst relations.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Denis Boyda, Gurtej Kanwar, Sebastien Racaniere, Danilo Jimenez Rezende, Michael S. Albergo, Kyle Cranmer, Daniel C. Hackett, Phiala E. Shanahan
Summary: A flow-based sampling algorithm has been developed for SU(N) lattice gauge theories, ensuring gauge invariance by construction. This algorithm constructs flows on an SU(N) variable (or on a U(N) variable through a simple alternative) that respects matrix conjugation symmetry, and has been applied to sample distributions of single SU(N) variables and to construct flow-based samplers for SU(2) and SU(3) lattice gauge theory in two dimensions.
Article
Physics, Particles & Fields
Alejandro Cabo-Bizet
Summary: It is argued that 4d SU(N) N = 4 SYM has a line of zero-temperature topologically ordered phases. Each phase corresponds to N bound states charged under electromagnetic Z(N)((1)) one-form symmetries. Each bound state consists of two Dyonic flux components extended over a two-dimensional surface. They are localized at fixed loci of a rotational action and are argued to correspond to conformal blocks (or primaries) of an SU(N)(1) WZNW model on a two-torus.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Lorenzo Coccia, Christoph F. Uhlemann
Summary: In this study, we discuss 3d T-rho(sigma)[SU(N)] quiver gauge theories with a large number of nodes and ranks scaling quadratically with the length of the quiver. The sphere free energies and topologically twisted indices were obtained using supersymmetric localization, showing quartic scaling with the length of the quiver and quadratic scaling with N. The IR SCFTs have supergravity duals in Type IIB, with free energies matching holographic results and previously discussed theories arising as limiting cases. Each balanced 3d quiver theory is linked to a 5d parent, with close relations between BPS observables dominated by the same saddle point in the matrix model.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Multidisciplinary Sciences
Yasar Y. Atas, Jinglei Zhang, Randy Lewis, Amin Jahanpour, Jan F. Haase, Christine A. Muschik
Summary: Researchers utilized quantum computing to simulate non-Abelian gauge theories, uncovering meson and baryon states and laying the groundwork for future quantum simulations.
NATURE COMMUNICATIONS
(2021)
Article
Astronomy & Astrophysics
E. M. B. Assencio, R. S. Caraca, S. G. Vilhena, P. J. Pompeia
Summary: In this work, we analyze second-order extensions of teleparallel theories of gravity as gauge theories for the translation group. We use Utiyama's approach to gauge theories and show that it is possible to include second-order derivative terms in the Lagrangian of the gauge potential and preserve gauge invariance.
CLASSICAL AND QUANTUM GRAVITY
(2023)
Article
Physics, Particles & Fields
Tomoki Nosaka
Summary: The study reveals that both the U(N)(k) x U(N + M)(-k) ABJM theory and the ABJM theory with N = 6 exhibit bilinear relations in their partition functions with respect to mass parameters, leading to different equations.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Lyonell Boulton, Maria Pilar Garcia del Moral, Alvaro Restuccia
Summary: This work discusses the existence and uniqueness of the ground state of the regularized Hamiltonian of the Supermembrane in various dimensions, focusing on the outer Dirichlet problem in unbounded valleys. The solution has a purely discrete spectrum with finite multiplicity in these valleys, in contrast to the continuous spectrum in unrestricted space. This analysis also determines an upper bound on the fermionic potential leading to the coercive property of the energy form.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Ekaterina Sysoeva, Aleksei Bykov
Summary: We derive a residue formula and recurrence relation for the instanton partition function in N = 2 supersymmetric theory on C-2 with SU(N) gauge group. The recurrence relation is known for SU(2) gauge group and a residue formula is found for the term with the minimal number of instantons in the SU(3) case. We provide a complete proof of the residue formula in all instanton orders and formulate a refined version of it based on an algebro-geometric interpretation.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Jiang Zhu, Zhao-feng Kang, Jun Guo
Summary: In this article, a slightly generalized massive PYM model is proposed, which considers the variation of the quasigluon mass Mg(T) with temperature. An effective potential is obtained by perturbative calculation, which can describe the behavior of the hot PYM system for all N using the single parameter Mg(T). Moreover, the fitted Mg(T) using machine learning follows N-universality under the assumption of unified eigenvalue distribution.
Article
Astronomy & Astrophysics
Berndt Muller
Summary: The study shows that the relationship between the specific shear viscosity and the dimensionless jet quenching parameter remains largely unchanged at the next-to-leading order in perturbative QCD, even though both transport coefficients undergo significant modifications at this level. This finding confirms the robustness of the relationship between the two parameters.
