New measure of chaos of convective pattern in soft-mode turbulence

Fahrudin Nugroho; Tatsuhiro Ueki; Rinto Anugraha; Yoshiki Hidaka; Shoichi Kai

doi:10.1063/1.3537932

New measure of chaos of convective pattern in soft-mode turbulence

Fahrudin Nugroho, Tatsuhiro Ueki, Rinto Anugraha, Yoshiki Hidaka, Shoichi Kai

Applied Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We investigate the response of electroconvective patterns to an external magnetic field H in a homeotropic nematic system where spatiotemporal chaos called the soft-mode turbulence (SMT) occurs. We introduce new order parameter O_p, obtained directly from the amplitude spectrum of the patterns. We measure the degree of regularity of patterns under influence of H using O _p and compare with the pattern ordering M_p obtained from analogy with the magnetization in 2D XY model. Our new order parameter O _p is well proportional to M_p.

Original language	English
Title of host publication	4th Asian Physics Symposium - An International Event
Pages	293-296
Number of pages	4
DOIs	https://doi.org/10.1063/1.3537932
Publication status	Published - Dec 1 2010
Event	4th Asian Physics Symposium - Bandung, Indonesia Duration: Oct 12 2010 → Oct 13 2010

Publication series

Name	AIP Conference Proceedings
Volume	1325
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	4th Asian Physics Symposium
Country	Indonesia
City	Bandung
Period	10/12/10 → 10/13/10

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Access to Document

10.1063/1.3537932

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AU - Ueki, Tatsuhiro

AU - Anugraha, Rinto

AU - Hidaka, Yoshiki

AU - Kai, Shoichi

PY - 2010/12/1

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N2 - We investigate the response of electroconvective patterns to an external magnetic field H in a homeotropic nematic system where spatiotemporal chaos called the soft-mode turbulence (SMT) occurs. We introduce new order parameter Op, obtained directly from the amplitude spectrum of the patterns. We measure the degree of regularity of patterns under influence of H using O p and compare with the pattern ordering Mp obtained from analogy with the magnetization in 2D XY model. Our new order parameter O p is well proportional to Mp.

AB - We investigate the response of electroconvective patterns to an external magnetic field H in a homeotropic nematic system where spatiotemporal chaos called the soft-mode turbulence (SMT) occurs. We introduce new order parameter Op, obtained directly from the amplitude spectrum of the patterns. We measure the degree of regularity of patterns under influence of H using O p and compare with the pattern ordering Mp obtained from analogy with the magnetization in 2D XY model. Our new order parameter O p is well proportional to Mp.

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