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This survey provides a comprehensive overview of the emerging field of world models grounded in the foundation of acoustic physical information. It examines the theoretical underpinnings, essential methodological frameworks, and recent…

Sound · Computer Science 2025-06-18 Xiaoliang Chen , Le Chang , Xin Yu , Yunhe Huang , Xianling Tu

In this letter, we investigate the population of energetically-dominant sunward-propagating Alfv\'en waves (SAWs) using more than 20 years of data provided by the Wind spacecraft near 1 au. We refer to SAWs as energetically-dominant…

Space Physics · Physics 2025-12-23 Nickolas Giardetti , Sofiane Bourouaine , Jean C. Perez

Elastic active matter or active solid consists of self-propelled units embedded in an elastic matrix. Active solid resists deformation; the shape-preserving property and the intrinsic non-equilibrium nature make active solids a superior…

Soft Condensed Matter · Physics 2023-02-01 Haoran Xu , Yulu Huang , Rui Zhang , Yilin Wu

Earlier obtained results on mechanical analogies of physical fields and particles are reviewed. The approach rests on the concept of the substratum - a mechanical medium, which occupies all the space and serves as a seat to support the…

General Physics · Physics 2007-05-23 Valery P. Dmitriyev

The stability of a flexible fluid membrane containing a distribution of mobile, active proteins (e.g. proton pumps) is shown to depend on the structure and functional asymmetry of the proteins. A stable active membrane is in a…

Soft Condensed Matter · Physics 2009-10-31 Sriram Ramaswamy , John Toner , Jacques Prost

The Artificial Axon is a unique synthetic system, based on biomolecular components, which supports action potentials. Here we consider, theoretically, the corresponding space extended system, and discuss the occurrence of solitary waves, or…

Soft Condensed Matter · Physics 2022-04-27 Xinyi Qi , Giovanni Zocchi

We present an experimental study of a droplet interacting with an ultrasonic surface acoustic wave (SAW). Depending on the amplitude of the wave, the drop can either experience an internal flow with its contact-line pinned, or (at higher…

Fluid Dynamics · Physics 2015-05-18 P. Brunet , M. Baudoin , O. Bou Matar , F. Zoueshtiagh

The polymerization of actin via branching at a cell membrane containing nucleation-promoting factors is simulated using a stochastic-growth methodology. The polymerized-actin distribution displays three types of behavior: a) traveling…

Biological Physics · Physics 2015-05-19 Anders E. Carlsson

By using a piezoelectric sensor, it was demonstrated that the visual evoked potential of a rat brain was accompanied by mechanical movements of the brain when it was excited. A phase of upward movement was found to be followed by a phase of…

Neurons and Cognition · Quantitative Biology 2014-04-29 Kunihiko Goto , Toshio Nakaye

In this work, topological resonance behaviors of surface acoustic waves (SAW) under a surface liquid-layer loading are investigated. By revealing influences of the liquid-layer loading on wave velocity of SAW and topological indices (Berry…

A growing body of evidence suggests that the solar wind is powered to a large extent by an Alfv\'en-wave (AW) energy flux. AWs energize the solar wind via two mechanisms: heating and work. We use high-resolution direct numerical simulations…

Solar and Stellar Astrophysics · Physics 2021-05-05 Jean C. Perez , Benjamin D. G. Chandran , Kristopher G. Klein , Mihailo M. Martinović

We study theoretically and numerically the coupling and rotational hydrodynamic interactions between spherical particles near a planar elastic membrane that exhibits resistance towards shear and bending. Using a combination of the multipole…

The behavior of monochromatic electromagnetic waves in stationary media is shown to be ruled by a frequency dependent function, which we call Wave Potential, encoded in the structure of the Helmholtz equation. Contrary to the common belief…

Quantum Physics · Physics 2013-08-23 Adriano Orefice , Raffaele Giovanelli , Domenico Ditto

We employ a millimeter-scale piezoelectric acoustic actuator, which generates MHz-frequency surface acoustic waves (SAWs) in a solid substrate, to actively coat a drop of water by a macroscopic film of silicon oil as a paradigm for a small…

Soft Condensed Matter · Physics 2023-01-24 Avital Reizman , Amihai Horesh , Lou Kondic , Ofer Manor

Classical models for predicting current flow in excitable cells such as axons, originally proposed by Hodgkin and Huxley, rely on empirical voltage-gating parameters that quantify ion transport across sodium and potassium ion channels. We…

Biological Physics · Physics 2025-02-24 Vivaan Patel , Joshua D. Priosoetanto , Aashutosh Mistry , John Newman , Nitash P. Balsara

We investigated travelling waves appearing as the primary pattern-forming instability in the nematic Phase 5 (Merck) in the planar geometry in order to test the recently developed weak electrolyte model of ac-driven electroconvection [M.…

patt-sol · Physics 2009-10-30 Martin Treiber , Nandor Eber , Agnes Buka , Lorenz Kramer

Collagen is the key protein of connective tissue (i.e., skin, tendons and ligaments, cartilage, among others) accounting for 25% to 35% of the whole-body protein content, and entitled of conferring mechanical stability. This protein is also…

Applied Physics · Physics 2021-01-27 Mario Milazzo , Gang Seob Jung , Serena Danti , Markus J. Buehler

Surface acoustic waves (SAWs) coupled to magnons have attracted much attention because they allow for the long-range transport of magnetic information which cannot be achieved by magnon alone. We employed pulsed laser interferometry to…

Materials Science · Physics 2024-04-30 Kazuki Maezawa , Shun Fujii , Kazuto Yamanoi , Yukio Nozaki , Shinichi Watanabe

Living cells employ excitable reaction-diffusion waves for internal cellular functions, in which curvature-inducing proteins are often involved. However, the role of their mechanochemical coupling is not well understood. Here, we report the…

Soft Condensed Matter · Physics 2022-08-09 Naoki Tamemoto , Hiroshi Noguchi

We show that the magnetic moment of a nanoparticle embedded in the surface of a solid can be switched by surface acoustic waves (SAW) in the GHz frequency range via a universal mechanism that does not depend on the structure of the particle…

Mesoscale and Nanoscale Physics · Physics 2016-01-27 Eugene M. Chudnovsky , Reem Jaafar
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