P
Patrick Diamond
Researcher at University of California, San Diego
Publications - 621
Citations - 24103
Patrick Diamond is an academic researcher from University of California, San Diego. The author has contributed to research in topics: Turbulence & Wave turbulence. The author has an hindex of 71, co-authored 604 publications receiving 22522 citations. Previous affiliations of Patrick Diamond include General Atomics & University of Wisconsin-Madison.
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Journal ArticleDOI
In Search of the Elusive Zonal Flow Using Cross-Bicoherence Analysis
Patrick Diamond,Marshall N. Rosenbluth,E. Sánchez,C. Hidalgo,B. van Milligen,T. Estrada,B. Brañas,M. Hirsch,H. J. Hartfuss,Benjamin A. Carreras +9 more
TL;DR: Experimental measurements of the spatiotemporal evolution of the spectrum integrated bicoherence at the L-->H transition near the edge shear layer indicate a modification in the nonlinear phase coupling, which might be linked to the generation of sheared ExB flows.
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Analytic solution for self-regulated collective escape of cosmic rays from their acceleration sites
Mikhail Malkov,Mikhail Malkov,Patrick Diamond,Roald Z. Sagdeev,Felix Aharonian,Igor V. Moskalenko +5 more
TL;DR: In this paper, a self-similar solution for a galactic cosmic ray (CR) cloud released by a dimmed accelerator strongly deviates from the test-particle result, where the escaping CR and the Alfven waves excited by them are treated on an equal footing.
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Secondary instability in drift wave turbulence as a mechanism for zonal flow and avalanche formation
Patrick Diamond,S. Champeaux,Mikhail Malkov,Amita Das,I. Gruzinov,Marshall N. Rosenbluth,Christopher Holland,B. Wecht,Andrei Smolyakov,F.L. Hinton,Zhihong Lin,T.S. Hahm +11 more
TL;DR: In this article, the authors explored the secondary instability as a mechanism for zonal flow generation, transport barrier dynamics and avalanche formation in drift-ion temperature gradient turbulence and reported on recent developments in the theory of secondary instability.
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Experimental progress on zonal flow physics in toroidal plasmas
Akihide Fujisawa,T. Ido,Akihiro Shimizu,S. Okamura,K. Matsuoka,H. Iguchi,Y. Hamada,H. Nakano,Shinichi Ohshima,Kimitaka Itoh,Katsumichi Hoshino,Kouji Shinohara,Y. Miura,Yoshihiko Nagashima,Sanae I. Itoh,Michael Shats,Hua Xia,Jiaqi Dong,Longwen Yan,K.J. Zhao,Garrard Conway,Ulrich Stroth,A.V. Melnikov,L.G. Eliseev,S. E. Lysenko,S.V. Perfilov,C. Hidalgo,George Tynan,Christopher Holland,Patrick Diamond,George McKee,R. J. Fonck,Deepak Gupta,P. M. Schoch +33 more
TL;DR: The present status of experiments on zonal flows in magnetic confinement experiments is examined in this paper, where a number of observations have been accumulated on the oscillatory branch of zonal flow, named geodesic acoustic modes, suggesting the necessity for theories to give their proper description.
Journal ArticleDOI
Mechanism for spectral break in cosmic ray proton spectrum of supernova remnant W44
TL;DR: It is demonstrated that strong ion-neutral collisions in the remnant surrounding lead to the steepening of the energy spectrum of accelerated particles by exactly one power.