Identification of unstable periodic orbit in inter-edge-localized-mode intervals in JT-60U

被引：25

作者：

Bak, PE ^{[1
]}

Yoshino, R ^{[1
]}

Asakura, N ^{[1
]}

Nakano, T ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Naka Fus Res Estab, Naka, Ibaraki 31101, Japan

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.83.1339

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A period-one unstable periodic orbit (UPO) is identified in the inter-edge-localized-mode (ELM) intervals of a high-performance quasisteady state discharge of JT-60U using UFO identification based on their recurrence properties and the so-called fixed point transform. This result is tested by use of surrogate data sets. This diagnostics invariant interpretation of the ELM confinement state gives detailed and applicable quantitative information since the UPOs in general form the skeleton of dynamical invariants and have in numerous systems been shown to be controllable by weak parameter perturbations.

引用

页码：1339 / 1342

页数：4

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