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We report on the existence of a hydrodynamic attractor in the Mueller-Israel-Stewart framework of a fluid living in the novel geometry discovered recently by Grozdanov. This geometry, corresponding to a hyperbolic slicing of…

High Energy Physics - Theory · Physics 2026-03-17 Alexander Soloviev

We study the dynamics of spontaneous translation symmetry breaking in holographic models in presence of weak explicit sources. We show that, unlike conventional gapped quantum charge density wave systems, this dynamics is well characterized…

High Energy Physics - Theory · Physics 2021-04-06 Tomas Andrade , Matteo Baggioli , Alexander Krikun

We examine the generation and evolution of perturbations in a universe dominated by a fluid with stiff equation of state $p=\rho$. The recently proposed Holographic Universe is an example of such a model. We compute the spectrum of scalar…

High Energy Physics - Theory · Physics 2009-11-10 Thorsten J. Battefeld , Damien A. Easson

The streaming instability, as an example of instabilities driven by particle feedback on a gas flow, has been proven to have a major role in controlling the formation of planetesimals. Here, we present experiments to approach this situation…

Earth and Planetary Astrophysics · Physics 2019-02-08 Niclas Schneider , Gerhard Wurm , Jens Teiser , Hubert Klahr , Vincent Carpenter

We study the dynamics of a one-dimensional fluid of orientable hard rectangles with a non-coarse-grained microscopic mechanism of facilitation. The length occupied by a rectangle depends on its orientation, which is coupled to an external…

Disordered Systems and Neural Networks · Physics 2011-12-09 Jeferson J. Arenzon , Deepak Dhar , Ronald Dickman

We study the condensation of a charged scalar field in a $(3+1)$-dimensional asymptotically AdS background in the context of Einsteinian cubic gravity, featuring a holographic superconductor with higher curvature corrections corresponding…

High Energy Physics - Theory · Physics 2022-06-14 José D. Edelstein , Nicolás Grandi , Alberto Rivadulla Sánchez

Compressible flow varies from ideal-gas behavior at high pressures where molecular interactions become important. Density is described through a cubic equation of state while enthalpy and sound speed are functions of both temperature and…

Fluid Dynamics · Physics 2020-03-11 William A. Sirignano

We study the density driven symmetry breaking in holographic superconductors by considering the positive mass squared case. We show that even for the positive $m^2$, a scalar condensation still forms, provided the chemical potential is high…

High Energy Physics - Theory · Physics 2010-01-07 Youngman Kim , Yumi Ko , Sang-Jin Sin

We consider closed immersed surfaces in R^3 evolving by the geometric triharmonic heat flow. Using local energy estimates, we prove interior estimates and a positive absolute lower bound on the lifespan of solutions depending solely on the…

Analysis of PDEs · Mathematics 2015-02-02 James McCoy , Scott Parkins , Glen Wheeler

The evolution of a planar perturbation in a Einstein-de Sitter Universe is studied using a previously introduced Lagrangian scheme. An approximate discrete dynamical system is derived, which describes the mass agglomeration process…

Astrophysics · Physics 2015-06-24 E. Aurell , D. Fanelli , S. N. Gurbatov , A. Yu. Moshkov

The influence of hopper width on dense granular flow in a two$-$dimensional hopper is investigated through experiments and simulations. Though the flow rate remains stable for larger hopper widths, a slight reduction in hopper width results…

Soft Condensed Matter · Physics 2024-04-23 Changhao Li , Xin Li , Xianggui Chen , Zaixin Wang , Min Sun , Decai Huang

A remarkable feature of two-dimensional turbulence is the transfer of energy from small to large scales. This process can result in the self-organization of the flow into large, coherent structures due to energy condensation at the largest…

Fluid Dynamics · Physics 2023-12-05 Anton Svirsky , Corentin Herbert , Anna Frishman

We present a framework for generative machine learning that leverages the holographic principle of quantum gravity, or to be more precise its manifestation as the anti-de Sitter/conformal field theory (AdS/CFT) correspondence, with…

Machine Learning · Computer Science 2026-01-30 Ehsan Mirafzali , Sanjit Shashi , Sanya Murdeshwar , Edgar Shaghoulian , Daniele Venturi , Razvan Marinescu

We study the geodesic flow on the unit cotangent bundle $M=S^{*}\mathcal{N}$ of a closed hyperbolic surface $\mathcal{N}$, using the representation theory of $SL_{2}(\mathbb{R})$. We construct explicit $X$-adapted Hilbert spaces, obtained…

Spectral Theory · Mathematics 2026-05-28 Frédéric Faure

We derive a continuum mean-curvature flow as a certain hydrodynamic scaling limit of Glauber-Kawasaki dynamics with speed change. The Kawasaki part describes the movement of particles through particle interactions. It is speeded up in a…

Probability · Mathematics 2023-01-18 Tadahisa Funaki , Patrick van Meurs , Sunder Sethuraman , Kenkichi Tsunoda

We present in this Letter experimental results on the bidimensional flow field around a cylinder penetrating into dense granular matter together with drag force measurements. A hydrodynamic model based on extended kinetic theory for dense…

Soft Condensed Matter · Physics 2018-01-17 Antoine Seguin , Yann Bertho , Philippe Gondret , Jerome Crassous

We report on depolarized and non-depolarized dynamic light scattering, static light scattering, and static viscosity measurements on interacting charged gibbsite platelets suspended in dimethyl sulfoxide (DMSO). The average collective and…

Soft Condensed Matter · Physics 2012-02-03 Dzina Kleshchanok , Marco Heinen , Gerhard Nägele , Peter Holmqvist

In this paper, we study the $\sigma_k$ curvature flow of noncompact spacelike hypersurfaces in Minkowski space. We prove that if the initial hypersurface satisfies certain conditions, then the flow exists for all time. Moreover, we show…

Differential Geometry · Mathematics 2022-07-12 Zhizhang Wang , Ling Xiao

By using the conserved currents in the bulk space-time, we study dynamical holographic systems and the relation between thermodynamical and dynamical stability of such systems. In particular, in the probe limit a generalized free energy is…

High Energy Physics - Theory · Physics 2023-10-09 Yu Tian , Xiao-Ning Wu , Hongbao Zhang

We use the holographic language to show the existence of the $a$-theorem for even dimensional CFTs, dual to the AdS space in general quadratic curvature gravity. We find the Wess-Zumino action which is originated from the spontaneous…

High Energy Physics - Theory · Physics 2019-12-13 Ahmad Ghodsi , Malihe Siahvoshan