Nonlinear Energy Transfer Analysis between Coherent Modes in Developing Plasma Turbulence

[2604.12523] Nonlinear Energy Transfer Analysis between Coherent Modes in Developing Plasma Turbulence Skip to main content Search Submit Donate Log in Physics > Plasma Physics arXiv:2604.12523 (physics) [Submitted on 14 Apr 2026 ( v1 ), last revised 27 Aug 2026 (this version, v2)] Title: Nonlinear Energy Transfer Analysis between Coherent Modes in Developing Plasma Turbulence Authors: Sandip Das , Lavkesh Lachhvani , Kunal Singha , Rosh Roy , Tanmay Karmakar , Daniel Raju , Prabal Chattopadhyay View PDF HTML (experimental) Abstract: Energy transfer among various spectral components of fluctuating physical parameters in plasma occurs due to the nonlinear interactions, but these effects are typically not captured by the traditional linear spectral methods. Plasma density fluctuations measured in the Inverse Mirror Plasma Experimental Device (IMPED) have signatures of nonlinear mode interactions among various instability modes, i.e. Rayleigh-Taylor (RT) and Drift-Wave (DW) modes. In this paper, the energy transfer among these modes as a result of nonlinear wave interactions (through the quadratic coupling processes) have been investigated in detail. The existing computational methods for single field model such as Ritz method and Kim method have been explored to understand the dynamics of nonlinear interaction between coherent modes. Both methods are applied and validated in simulation as well as experimental data from IMPED for coherent modes in plasma. We find that the validity and applicability of the methods depend on the statistical nature of the data, particularly higher-order moments such as kurtosis, and on spatial stationarity. Energy transfer analysis using these methods reveals primarily the transfer of energy from a RT mode and a mix mode of DW and RT to a comparatively low-frequency DW mode, demonstrating the capability of the method to quantify spectral energy transport between the coherent modes. Comments: 34 pages, 28 figures, 3 tables Subjects: Plasma Physics (physics.plasm-ph) Cite as: arXiv:2604.12523 [physics.plasm-ph] (or arXiv:2604.12523v2 [physics.plasm-ph] for this version) https://doi.org/10.48550/arXiv.2604.12523 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Sandip Das [ view email ] [v1] Tue, 14 Apr 2026 09:55:44 UTC (4,250 KB) [v2] Thu, 27 Aug 2026 09:10:30 UTC (4,057 KB) Full-text links: Access Paper: View PDF HTML (experimental) TeX Source view license Current browse context: physics.plasm-ph < prev | next > new | recent | 2026-04 Change to browse by: physics References & Citations SciX Google Scholar Semantic Scholar export BibTeX citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab)

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