Response of plasma turbulence against externally-controlled perturbations

Sanae Itoh, K. Itoh

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A theory of the dynamic response of the turbulent plasma against the externally-controlled perturbations is reported. Based on Mori's method [Prog. Theor. Phys. 33 423 (1965)], the nonlinear force is assumed to be separated into the memory function and the nonlinear fluctuating force. The former corresponds to the damping term, and the latter is categorized into the noise term. The response of the turbulent plasma against the externally-controlled source is formulated. The response kernel, which connects the externally-controlled source and the response of the turbulent field, is shown to have both the nonlocal property (in space) and the non-Markovian response (in time). A discussion is made on the nonlocal and non-Markovian response, including the case of disparate-scale interactions. A new method is proposed to observe experimentally the nonlocal interaction in the drift wave turbulence via the zonal flows.

Original languageEnglish
Article number095201
JournalChinese Physics B
Volume21
Issue number9
DOIs
Publication statusPublished - Sep 1 2012

Fingerprint

plasma turbulence
perturbation
dynamic response
damping
turbulence
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Response of plasma turbulence against externally-controlled perturbations. / Itoh, Sanae; Itoh, K.

In: Chinese Physics B, Vol. 21, No. 9, 095201, 01.09.2012.

Research output: Contribution to journalArticle

@article{1d7ca1c4036c4a3fbf41f290cd816b3f,
title = "Response of plasma turbulence against externally-controlled perturbations",
abstract = "A theory of the dynamic response of the turbulent plasma against the externally-controlled perturbations is reported. Based on Mori's method [Prog. Theor. Phys. 33 423 (1965)], the nonlinear force is assumed to be separated into the memory function and the nonlinear fluctuating force. The former corresponds to the damping term, and the latter is categorized into the noise term. The response of the turbulent plasma against the externally-controlled source is formulated. The response kernel, which connects the externally-controlled source and the response of the turbulent field, is shown to have both the nonlocal property (in space) and the non-Markovian response (in time). A discussion is made on the nonlocal and non-Markovian response, including the case of disparate-scale interactions. A new method is proposed to observe experimentally the nonlocal interaction in the drift wave turbulence via the zonal flows.",
author = "Sanae Itoh and K. Itoh",
year = "2012",
month = "9",
day = "1",
doi = "10.1088/1674-1056/21/9/095201",
language = "English",
volume = "21",
journal = "Chinese Physics B",
issn = "1674-1056",
publisher = "IOP Publishing Ltd.",
number = "9",

}

TY - JOUR

T1 - Response of plasma turbulence against externally-controlled perturbations

AU - Itoh, Sanae

AU - Itoh, K.

PY - 2012/9/1

Y1 - 2012/9/1

N2 - A theory of the dynamic response of the turbulent plasma against the externally-controlled perturbations is reported. Based on Mori's method [Prog. Theor. Phys. 33 423 (1965)], the nonlinear force is assumed to be separated into the memory function and the nonlinear fluctuating force. The former corresponds to the damping term, and the latter is categorized into the noise term. The response of the turbulent plasma against the externally-controlled source is formulated. The response kernel, which connects the externally-controlled source and the response of the turbulent field, is shown to have both the nonlocal property (in space) and the non-Markovian response (in time). A discussion is made on the nonlocal and non-Markovian response, including the case of disparate-scale interactions. A new method is proposed to observe experimentally the nonlocal interaction in the drift wave turbulence via the zonal flows.

AB - A theory of the dynamic response of the turbulent plasma against the externally-controlled perturbations is reported. Based on Mori's method [Prog. Theor. Phys. 33 423 (1965)], the nonlinear force is assumed to be separated into the memory function and the nonlinear fluctuating force. The former corresponds to the damping term, and the latter is categorized into the noise term. The response of the turbulent plasma against the externally-controlled source is formulated. The response kernel, which connects the externally-controlled source and the response of the turbulent field, is shown to have both the nonlocal property (in space) and the non-Markovian response (in time). A discussion is made on the nonlocal and non-Markovian response, including the case of disparate-scale interactions. A new method is proposed to observe experimentally the nonlocal interaction in the drift wave turbulence via the zonal flows.

UR - http://www.scopus.com/inward/record.url?scp=84866357419&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866357419&partnerID=8YFLogxK

U2 - 10.1088/1674-1056/21/9/095201

DO - 10.1088/1674-1056/21/9/095201

M3 - Article

AN - SCOPUS:84866357419

VL - 21

JO - Chinese Physics B

JF - Chinese Physics B

SN - 1674-1056

IS - 9

M1 - 095201

ER -