@article{7f3109da02cd4109b5af4857e487d46e,
title = "On the bicoherence analysis of plasma turbulence",
abstract = "The bicoherence of fluctuations in a system of drift waves and zonal flows is discussed. In strong drift-wave turbulence, where broadband fluctuations are excited, the bicoherence is examined. A Langevin equation formalism of turbulent interactions allows us to relate the bicoherence coefficient to the projection of nonlinear force onto the test mode. The dependence of the summed bicoherence on the amplitude of zonal flows is clarified. The importance of observing biphase is also stressed. The results provide a basis for measurement of nonlinear interaction in a system of drift waves and zonal flow.",
author = "K. Itoh and Y. Nagashima and Itoh, {S. I.} and Diamond, {P. H.} and A. Fujisawa and M. Yagi and A. Fukuyama",
note = "Funding Information: This work is partly supported by the Grant-in-Aid for Specially Promoted Research of Ministry of Education, Culture, Sports, Science and Technology, Japan (16002005), by the Grant-in-Aid for Scientific Research (15360495), by the collaboration programs of NIFS and of the Research Institute for Applied Mechanics of Kyushu University, by Asada Science Foundation, and by the U.S. DOE under Grant Nos. FG03-88ER53275 and FG02-04ER54738. One of the authors (P.H.D.) acknowledges the hospitality of Kyushu University.",
year = "2005",
doi = "10.1063/1.2062627",
language = "English",
volume = "12",
pages = "1--9",
journal = "Physics of Plasmas",
issn = "1070-664X",
publisher = "American Institute of Physics Publising LLC",
number = "10",
}