The Fusion and Astrophysical Plasma Physics Group (FAPP) at University of California San Diego studies the physics of plasma—hot, ionized gas—with the aims of advancing fusion energy and humankind’s understanding of the universe.

As theoretical physicists...

We aim to understand the phenomenology of plasma in the laboratory and in the cosmos. We use mathematical models and computer simulations to explain how plasmas move, interact with magnetic fields and boundaries, and evolve on various scales.

Working with collaborators in the U.S. and around the world, we advance fundamental physics concepts that guide experiments and project applications, such as the development of magnetic fusion energy.

This website offers information about our group members, research activities, and publications. We invite you to browse it and to contact us with any questions.

Latest Publications

Formation and Evolution of Target Patterns in Cahn-Hillard Flows
Fan, X., P.H. Diamond, and L. Chacón
Phys. Rev. E 96, 041101(R), 2017; doi:10.1103/PhysRevE.96.041101
[pdf, publisher's version]

Bistable Dynamics of Turbulence Spreading in a Corrugated Temeprature Profile
Guo, Z.B. and P.H. Diamond
Phys. Plasmas 24, 100705, 2017; doi:10.1063/1.5000850
[pdf, author's final version]

Mechanics dictate where and how freshwater planarians fission
Malinowski, P.T., O. Cochet-Escartin, K.J. Kaj, E. Ronan, A. Groisman, P.H. Diamond, and E-M.S. Collins
Proc. Natl. Acad. Sci. USA 114(41), 10888-10893, 2017; doi:10.1073/pnas.1700762114
[Article: pdf, publisher's version]
[Supporting Information: pdf, publisher's version]

Understanding and Predicting Profile Structure and Parametric Scaling of Intrinsic Rotation
Wang, W.X., B.A. Grierson, S. Ethier, J. Chen, E. Startsev, and P.H. Diamond
Phys. Plasmas 24, 092501, 2017; doi:10.1063/1.4997789
[pdf, author's final version]

On the ρ* Scaling of Intrinsic Rotation in C-Mod Plasmas with Edge Transport Barriers
Rice, J.E., J.W. Hughes, P.H. Diamond, N.M. Cao, M. Chilenski, A.E. Hubbard, J.H. Irby, et al.
Nucl. Fusion 57, 116004, 2017; doi:10.1088/1741-4326/aa7b44
[Request pdf — author's final version available here after end of embargo period]

Mesoscale Electric Fluctuations Interacting with Zonal Flows, Magnetic Fluctuations and Turbulence
Zhao, K.J., Y. Nagashima, P.H. Diamond, J.Q. Dong, K. Itoh, S.-I. Itoh, L.W. Yan, et al.
Nucl. Fusion 57, 076036, 2017; doi:10.1088/1741-4326/aa6f35
[Request pdf — author's final version available here after end of embargo period]

Modelling Enhanced Confinement in Drift-wave Turbulence
Hajjar, R.J. and P.H. Diamond
Phys. Plasmas 24, 062106, 2017; doi:10.1063/1.4985323
[pdf, author's final version]

Role of Phase Space Structures in Collisionless Drift Wave Turbulence and Impact on Transport Modeling
Kosuga, Y., S. -I. Itoh, P.H. Diamond, K. Itoh, and M. Lesur
Nucl. Fusion 57, 072006, 2017; doi:10.1088/1741-4326/57/7/072006
[Request pdf — author's final version available here after end of embargo period]

See more publications



We develop theory related to plasma and fusion science, including:

  • Nonlinear dynamics of plasmas and fluids
  • Anomalous transport
  • Self-organized criticality in confined plasma
  • L-H transition, transport barrier physics
  • Dynamo theory
  • Nonlinear waves in space plasma

Learn more.



Our work is primarily funded by the Office of Fusion Energy Sciences of the U.S. Department of Energy (Grant No. DE-FG02-04ER54738).



In memory of Professor Marshall N. Rosenbluth, an American plasma physicist and UCSD professor of enormous intellect, integrity, generosity, and vision.