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Yochelis, Arik

Faculty (Adjunct , Solar Energy and Environmental Physics )
Yochelis, Arik
Research type
Research topics

Nonlinear physics of pattern forming systems: applications to energy devices, physical chemistry and biology

Researcher identification
Google Scholar, ORCID, ResearcherID, Scopus

Past graduate students *

  1. Yuval Edri, PhD (2019)
  2. Yuval Edri, MSc (2018)

Past undergraduate students *

  1. תמר כהן (2021)
  2. אריאל פאלק (2020)
* Past students / postdocs data might be incomplete

Research highlights

Nonlinear Dynamics and Biological Applications

Simulation of waves in a model for intra-cellular actin polymerization and membrane ruffles

Biological systems show a plethora of fascinating self-organized behaviors that range from organ to cellular levels, such as spiral waves, pulses, synchronization, and steady states that are periodic in space. These non-equilibrium phenomena emerge through either spontaneous or forced symmetry breaking mechanisms. Employing nonlinear dynamics methods, we attempt to understand specific cases (localized waves in the inner ear) as well as gain general insights into the emergence of traveling waves with motivation taken from molecular motors, actin polymerization and cardiac system.

Soft Matter Physics and Renewable Energy

Simulation of self-assembled nano-structure in a model for ionic liquid

Most renewable energy devices exploit nano-scale morphologies that are paramount to large surface area, required to increase activity. However, electrical effects are often strong enough to influence the structure of active layers of those materials leading to a notorious decrease in performance. To date, theoretical studies have dealt almost exclusively with uncoupled models of self-assembly and electrokinetics. We develop novel and computationally amenable mean-field frameworks that do unify them. Our expectations are to advance devices, such as batteries, supercapacitors, and solar cells.


  1. Yochelis, A., "The Nonlinear Initiation Of Side-Branching By Activator-Inhibitor-Substrate (Turing) Morphogenesis", Chaos 31, 051102 (2021)
  2. Beta, C. and Gov, N.S. and Yochelis, A., "Why A Large-Scale Mode Can Be Essential For Understanding Intracellular Actin Waves", Cells 9, 1533 (2020)
  3. Shapira, A.Z. and Gavish, N. and Uecker, H. and Yochelis, A., "Bending And Pinching Of Three-Phase Stripes: From Secondary Instabilities To Morphological Deformations In Organic Photovoltaics", Phys. Rev. E 102, 062213 (2020)
  4. Avital, Y.Y. and Dotan, H. and Klotz, D. and Grave, D.A. and Tsyganok, A. and Gupta, B. and Kolusheva, S. and Visoly-Fisher, I. and Rothschild, A. and Yochelis, A., "Two-Site H2O2 Photo-Oxidation On Haematite Photoanodes", Nat Commun 9, 4060 (2018)
  5. Gavish, Nir And Elad, Doron And Yochelis, Arik, "From Solvent-Free To Dilute Electrolytes: Essential Components For A Continuum Theory", Journal Of Physical Chemistry Letters 9, 36-42 (2018)
  6. Bernitt, E. and Döbereiner, H. and Gov, N.S. and Yochelis, A., "Fronts And Waves Of Actin Polymerization In A Bistability-Based Mechanism Of Circular Dorsal Ruffles", Nat Comms 8, 15863 (2017)