THEORY DEPARTMENT
ABOUT
PEOPLE
NEWS & EVENTS
RESEARCH
EDUCATION
News & Events
Research Seminars
R&R Seminars
Plasma Webinars
Stellarator Series
Frontiers Colloquia
Heliophysics Seminars
CSG Seminars
EP Seminars
Highlights
Invited Talks
External Seminars
In the Media
Highlights
The following describe research highlights of the Theory Department.
Past
Permanent Magnets Can be Used to Simplify Stellarators
Per Helander,
slides
[#s1162, 07 Aug 2020]
Balancing the Macroscopic Pressure and Magnetic Force in Stellarators
Stuart Hudson, Sophia Henneberg, Per Helander,
slides
[#s1161, 04 Aug 2020]
Explosive Disruptions of the Magnetosphere Lead to Substorms
Sam Totorica, Amitava Bhattacharjee,
slides
[#s1152, 02 Aug 2020]
Dancing Magnetic Field Lines in Simulations of the Edge of Fusion Devices
Greg Hammett,
slides
[#s1160, 02 Aug 2020]
Efficient Simulations of Energetic Ion Relaxation in Burning Plasmas
Nikolai Gorelenkov,
slides
[#s1166, 02 Aug 2020]
A Revolutionary Model of the Dynamic Magnetic Field that Surrounds Mercury
Chuanfei Dong, Amitava Bhattacharjee,
slides
[#s1144, 31 Jul 2020]
Fixing Ray Optics for Wave Simulations
Nicolas Lopez, Ilya Dodin,
slides
[#s1153, 31 Jul 2020]
Unraveling the Physical Mechanism of Explosive Events in the Sun
Yi-Min Huang,
slides
[#s1156, 31 Jul 2020]
Understanding Turbulence in Earth’s Atmosphere Helps Unlock Mechanisms of Magnetic Field Generation Inside the Sun
Valentin Skoutnev,
slides
[#s1159, 31 Jul 2020]
Stabilizing Fusion Plasmas with Radio Frequency Waves
Allan Reiman, Nat Fisch,
slides
[#s1163, 31 Jul 2020]
Moving fusion research into the big-and-fast data lane
Ralph Kube, Michael Churchill and C.S. Chang,
slides
[#s1141, 29 Jul 2020]
Understanding Plasma Rotation When Turbulence and Magnetic Ripples are at Odds
Timothy Stoltzfus-Dueck,
slides
[#s1142, 29 Jul 2020]
Nonlinear Wave Interactions Lead to Damaging Bursts of Energy at the Edge of Tokamaks
Julien Dominski, Ahmed Diallo,
slides
[#s1134, 01 Apr 2020]
Electrical Current Generation by Turbulence Can Affect Plasma Confinement in Future Fusion Reactors
Weixing Wang,
slides
[#s1133, 31 Mar 2020]
The Primary, Secondary, and Tertiary Instabilities Determine the Onset of Turbulence in Fusion Plasmas
Hongxuan Zhu, Yao Zhou, Ilya Dodin,
slides
[#s1132, 18 Mar 2020]
XGC-M3Dc1 coupled extreme-scale simulations explain RMP-driven edge transport in realistic DIII-D edge plasma
Robert Hager, C.S. Chang, Nate Ferraro and Raffi Nazikian,
slides
[#s1143, 01 Jan 2020]
Physics-Constrained Neural Networks for Expensive Fokker-Planck Solvers - A SciDAC FASTMath and HBPS Success!
Andreas Miller, Michael Churchill and C.S. Chang (PPPL); Alp Dener, Todd Munson (ANL),
slides
[#s1154, 01 Jan 2020]
Established capability for near-real time networked analysis of big KSTAR data at NERSC
Michael Churchill, Ralph Kube and C.S. Chang ,
slides
[#s1155, 01 Jan 2020]
Improved Equation-Free Method that Maximizes the Preservation of Microscale Properties
Benjamin Sturdevant, C.S. Chang and Robert Hager (PPPL); Scott Parker (U. Colorado, Boulder),
slides
[#s1157, 01 Jan 2020]
A New Particle Resampling Algorithm by ASCR Scientists is Enabling ITER-Critical Turbulence Simulations in Stochastic Magnetic Fields
CS Chang and Robert Hager (PPPL); Varis Carey (U. Colorado, Denver),
slides
[#s1158, 01 Jan 2020]
New Model Sheds Light on Key Physics of Magnetic Islands that Can Halt Fusion Reactions
C-S. Chang,
slides
[#s793, 12 Jul 2018]
Advanced Simulations Capture the Dynamics of Solar Flares, Northern Lights and Space Storms
Ammar Hakim,
slides
[#s790, 09 Jul 2018]
Auroras on the Moon? Which Moon?
Liang Wang,
slides
[#s736, 28 May 2018]
Higher Plasma Densities, More Efficient Tokamaks
Qian Teng,
slides
[#s733, 21 May 2018]
Fractals, Plasma Physics and Fusion
Brian Kraus,
slides
[#s662, 20 Mar 2018]
Nonlinear simulations of magnetically confined plasmas reveal a self-regulating stabilizing mechanism
Isabel Krebs,
slides
[#s625, 09 Feb 2018]
Magnetized plasmas that “twist light” can produce high-power microscopes, and more.
Kenan Qu,
slides
[#s558, 11 Dec 2017]
Predicting Magnetic Explosions: From Plasma Current Sheet Disruption to Fast Magnetic Reconnection
Yi-Min Huang,
slides
[#s532, 06 Nov 2017]
Are “Habitable” Exoplanets Really Habitable?
Chuanfei Dong,
slides
[#s501, 10 Oct 2017]
Zero tolerance in tokamaks: eliminating small instabilities before they become disruptions
Dylan Brennan,
slides
[#s500, 09 Oct 2017]
Spinning on its own: selecting the direction of intrinsic rotation
Timothy Stoltzfus-Dueck,
slides
[#s441, 14 Aug 2017]
A billion trillion “clashes” make a plasma: averaging over the micro to understand the macro
David Pfefferlé,
slides
[#s307, 10 Aug 2017]
Bringing Cosmic Shock Waves Down to Earth
Derek Schaeffer,
slides
[#s430, 01 Jul 2017]
Zonostrophic Instability and the Onset of the Dimits Shift
John Krommes,
slides
[#s308, 01 May 2017]
First high-fidelity computational demonstration of spontaneous transition to high-confinement plasma required by ITER
C-S. Chang,
slides
[#s309, 01 Apr 2017]
Understanding and avoiding disruptions that halt fusion reactions
Nate Ferraro,
slides
[#s310, 01 Mar 2017]
Magnetorotational Turbulence and Dynamo in a Collisionless Plasma
Matthew Kunz,
slides
[#s311, 01 Feb 2017]
Theory for high-intensity charged particle beams in strongly coupled focusing lattice
Hong Qin,
slides
[#s312, 01 Jan 2017]
General Theory of the Plasmoid Instability
Luca Comisso,
slides
[#s313, 01 Dec 2016]
Plasmoids formation in a laboratory and large-volume flux closure during simulations of Coaxial
Fatima Ebrahimi,
slides
[#s314, 01 Nov 2016]
Extending geometrical optics: A Lagrangian theory for vector waves
Daniel Ruiz,
slides
[#s315, 01 Oct 2016]
Understanding and Predicting Intrinsic Rotation in Fusion Plasmas
Weixing Wang,
slides
[#s316, 01 Sep 2016]
3D Full Wave Simulation of Reflectometry in Toroidal Plasma
Ernest Valeo,
slides
[#s317, 01 Sep 2016]
Diagnostic Applications of Neutral Transport
Daren Stotler,
slides
[#s318, 01 Aug 2016]
A new hybrid-Lagrangian gyrokinetic scheme for tokamak edge plasmas
Seung-Hoe Ku,
slides
[#s319, 01 Jul 2016]
An accurate and scalable nonlinear multi-species Fokker-Planck operator solver
Robert Hager,
slides
[#s320, 01 Jun 2016]
Priority topics in energetic ion physics research
Nikolai Gorelenkov,
slides
[#s321, 01 May 2016]
Controlling plasma properties: electron induced secondary electron emission
Igor Kaganovich,
slides
[#s338, 13 Apr 2016]
Hamiltonian gyrokinetic Vlasov-Maxwell system
Josh Burby,
slides
[#s322, 01 Apr 2016]
Variational methods for modeling linear and nonlinear waves in fusion plasmas: fundamental physics and applications
Ilya Dodin,
slides
[#s323, 01 Mar 2016]
Sheath-induced instabilities in magnetized plasmas
Igor Kaganovich,
slides
[#s337, 17 Feb 2016]
Astrophysical Weibel instability in counter-streaming laser-driven plasmas
Will Fox,
slides
[#s324, 01 Feb 2016]
Accurate calculation of Singular Current Densities in non-linear, ideal MHD equilibrium solutions
Stuart Hudson,
slides
[#s325, 01 Jan 2016]
Complex Electron Energy Distribution in Asymmetric RF-DC Discharge
Igor Kaganovich,
slides
[#s336, 15 Dec 2015]
Strong Dependence of Intrinsic Rotation on X-Point Position
Timothy Stoltzfus-Dueck,
slides
[#s326, 01 Dec 2015]
Coupling of Neutral-beam-driven Compressional Alfvén Eigenmodes to Kinetic Alfvén Waves in NSTX and Energy Channelling
Elena Belova,
slides
[#s327, 01 Nov 2015]
Two-stream instability of an electron beam propagating in a bounded plasma
Igor Kaganovich,
slides
[#s335, 14 Oct 2015]
Self-organized Stationary States of Tokamaks
Steve Jardin,
slides
[#s328, 01 Oct 2015]
Benchmarking and Validation Initiative for Three-Dimensional Equilibrium Calculations
Allan Reiman,
slides
[#s329, 01 Sep 2015]
Riding an electron wave into the future of microchip
Igor Kaganovich,
slides
[#s334, 15 Aug 2015]
Tokamak MHD (TMHD) model for disruption studies
Leonid Zakharov,
slides
[#s330, 01 Aug 2015]
Critical Gradient Model for Fast Ion Profile Relaxation in Tokamaks
Nikolai Gorelenkov,
slides
[#s331, 01 Jul 2015]
Helping General Electric Upgrade the U.S. Power Grid
Igor Kaganovich,
slides
[#s333, 15 Jun 2015]
Turbulence-driven “anomalous bootstrap current" generation
Weixing Wang,
slides
[#s332, 01 Jun 2015]