Yochelis, Arik

Faculty (Adjunct , Solar Energy and Environmental Physics )

Email: yochelis@bgu.ac.il
Office: 54/220
Phone: 08-6472750
Website: http://www.bgu.ac.il/~yochelis/
Research type: Theoretical
Research topics: Nonlinear physics of pattern forming systems: applications to energy devices, physical chemistry and biology
Researcher identification: Google Scholar, ORCID, ResearcherID, Scopus

Research group

PhD student, Saar Modai

Past graduate students *

Past undergraduate students *

* 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.

Publications

Knobloch, E. and Yochelis, A., "Emergence Of Rogue-Like Waves In A Reaction-Diffusion System: Stochastic Output From Deterministic Dissipative Dynamics", Chaos 34, 051103 (2024)
Beta, C. and Edelstein-Keshet, L. and Gov, N. and Yochelis, A., "From Actin Waves To Mechanism And Back: How Theory Aids Biological Understanding", eLife 12, e87181 (2023)
Tsyganok, A. and Monroy-Castillero, P. and Piekner, Y. and Yochelis, A. and Rothschild, A., "Parallel Water Photo-Oxidation Reaction Pathways In Hematite Photoanodes: Implications For Solar Fuel Production", Energy Environ. Sci. 15, 2445-2459 (2022)
Yochelis, A. and Flemming, S. and Beta, C., "Versatile Patterns In The Actin Cortex Of Motile Cells: Self-Organized Pulses Can Coexist With Macropinocytic Ring-Shaped Waves", Phys. Rev. Lett. 129, 088101 (2022)
Yochelis, A., "The Nonlinear Initiation Of Side-Branching By Activator-Inhibitor-Substrate (Turing) Morphogenesis", Chaos 31, 051102 (2021)
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)
Edri, Yuval And Bozovic, Dolores And Meron, Ehud And Yochelis, Arik, "Molding The Asymmetry Of Localized Frequency-Locking Waves By A Generalized Forcing And Implications To The Inner Ear", Physical Review E 98, 020202 (2018)
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)
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)