physics.plasm-ph papers

Plasma physics explores the behavior of the fourth state of matter, a superheated soup of charged particles that makes up most of the visible universe. From the fusion power we hope to harness on Earth to the glowing auroras and distant stars above, this field investigates how these energetic gases interact with magnetic fields and light. It is a dynamic area where extreme conditions reveal fundamental laws of nature in ways solid matter never can.

At Gist.Science, we bridge the gap between these complex discoveries and curious minds by processing every new preprint from arXiv in this category. We transform dense, technical research into clear, plain-language explanations alongside detailed summaries, ensuring that breakthroughs in plasma dynamics and fusion energy are accessible to everyone. Below are the latest papers in plasma physics, curated and simplified for your reading.

🔬 physics

Studies of laser stimulated photodetachment from nanoparticles for particle charge measurements

This study demonstrates the applicability of laser-stimulated photodetachment (LSPD) combined with laser-light extinction to estimate the mean charge of nanoparticles (approximately 37 elementary charges) in an Ar/C2H2 dusty plasma, while highlighting that residual negative ions and electron depletion cause measured charges to deviate from standard Orbital Motion Limited (OML) theory predictions.

Y. A. Ussenov, M. N. Shneider, S. Yatom, Y. Raitses2026-07-09

🔬 physics

Energy transfer and conversion in Strongly Anisotropic Magnetohydrodynamic Turbulence

This study extends the analysis of energy transfer mechanisms in magnetohydrodynamic turbulence to configurations with imposed magnetic fields, confirming that current-sheet thinning remains the dominant driver of the energy cascade while revealing a scale-dependent reversal in kinetic-to-magnetic energy conversion driven by the background field.

Damiano Capocci, Sean Oughton, Moritz Linkmann2026-07-09

🔬 physics

A Variational Framework for Guiding-Center Kinetics, Anisotropic Equilibria, and Quasisymmetry in Stellarators

This paper presents a unified variational framework derived from a guiding-center Vlasov–Maxwell action that simultaneously yields guiding-center kinetics, macroscopic force balance with anisotropic pressure, and quasisymmetry constraints, linking the latter to a specific coordinate-free integrability condition that imposes solvability constraints on plasma anisotropy.

Lanke Fu, Amitava Bhattacharjee2026-07-09

🔬 physics

Ultrafast proton radiography of the magnetic fields generated by a laser-driven coil current

Using ultrafast proton radiography, researchers successfully measured magnetic fields of approximately 40–50 Tesla generated by a laser-driven current in a U-shaped copper coil, providing critical insights for future high-energy-density science applications.

Lan Gao, Hantao Ji, Gennady Fiksel, William Fox, Michelle Evans, Noel Alfonso2026-07-09

🔬 physics

Path Integral Monte Carlo for Fictitious Identical Particles with {\xi}-Ensemble

This paper proposes a Path Integral Monte Carlo algorithm utilizing a $\xi$ -ensemble to efficiently compute the thermodynamic properties of fictitious identical particles across multiple $\xi$ values within a single simulation, thereby significantly improving sampling efficiency and reducing autocorrelation times compared to traditional independent simulations.

Yunuo Xiong2026-07-09

🔬 physics

Magnetic field generation by the Rayleigh-Taylor instability in laser-driven planar plastic targets

Using ultrafast proton radiography on laser-driven planar plastic foils, researchers experimentally measured megagauss-level magnetic fields generated by the Rayleigh-Taylor instability, finding results that align well with 2-D magnetohydrodynamic simulations.

L Gao, PM Nilson, IV Igumenschev, SX Hu, JR Davies, C Stoeckl, MG Haines, DH Froula, R Betti, DD Meyerhofer2026-07-09

🔬 optics

Terahertz Generation through Photon Deceleration of Long-Wavelength Infrared Laser Pulses in Plasma

This study demonstrates through Particle-In-Cell simulations and theoretical analysis that efficient terahertz generation with a record-breaking 4% laser-to-THz conversion efficiency, 100 GV/m field amplitude, and 50 mJ pulse energy can be achieved via photon deceleration of long-wavelength infrared laser pulses in plasma.

Srimanta Maity2026-07-09

🔬 physics

Counter-streaming heat-flux closure for electron-only collisionless magnetic reconnection

This paper introduces a novel fluid closure for electron-only collisionless magnetic reconnection that models electrons as two counter-streaming adiabatic fluids, successfully capturing key kinetic features like heat-flux and current density that conventional single-fluid models miss, particularly in regimes relevant to Earth's magnetotail.

Madox C. McGrae-Menge, Jacob R. Pierce, Maria Almanza, Alexander Velberg, Nathaniel Barbour, William D. Dorland, Nuno F. (…)2026-07-09

🔬 physics

Observation of Self-Similarity in the Magnetic Fields Generated by the Ablative Nonlinear Rayleigh-Taylor Instability

Using ultrafast proton radiography, researchers observed self-similar growth in magnetic fields generated by the ablative nonlinear Rayleigh-Taylor instability in laser-accelerated targets, confirming a bubble competition and merger model that links these magnetic structures to the underlying fluid dynamics.

L. Gao, P. M. Nilson, I. V. Igumenschev, G. Fiksel, R. Yan, J. R. Davies, D. Martinez, V. Smalyuk, M. G. Haines, E. G. B (…)2026-07-09

🔬 physics

Out-of-time-ordered correlators for turbulent fields: a quantum-classical correspondence

This paper develops an extended formulation of out-of-time-ordered correlators (OTOCs) for turbulent fields using the Hasegawa-Mima equation, deriving a classical-limit expression that quantifies scale-dependent information scrambling and reveals how strong zonal flows drive quadratic early-time growth followed by algebraic saturation due to shear-induced mode mixing.

Motoki Nakata2026-07-08

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