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ご参考まで．（重複ご容赦）
-----Original Message-----
From: Tetsuro KONISHI [mailto:tkonishi@***.***]
Sent: Monday, May 31, 2004 6:39 PM
To: seminar@***.***
Cc: uwaha@***.***
Subject: Paolo Politi 氏講演会 "Coarsening Dynamics during the Growth of
One-Dimensional Interfaces" (名古屋大・物理)
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日本物理学会名古屋支部講演会
題目 Coarsening Dynamics during the Growth of One-Dimensional Interfaces
講師 Paolo Politi
Istituto di Fisica Applicata "N. Carrara" , CNR,
Firenze, Italy
日時 2004年6月4日(金) 10時30分
場所 名古屋大学理学部C館4階物理会議室(C422)
Paolo Politi氏は結晶の核生成やmorphological instabilityの理論的研究で
現在最も活発に仕事をされている代表的な研究者です．慶応大学に滞在中ですが，
とくに名古屋に来ていただき，1次元非線型方程式の解としての界面パターンの
coarseningがどのような条件で起きるかについて，最近の研究に成果を話して
いただきます．
問い合わせ先: 名古屋大学物理教室S研究室 上羽牧夫
(Tel: 052-789-2874, E-mail: uwaha@***.***)
abstract:
Several nonequilibrium systems display an ordererd pattern whose typical
length scale either increases in the course of time through a coarsening
process, or it keeps constant with a possible diverging amplitude. We
analyze the dynamics of a one-dimensional growing front and we argue that a
coarsening process occurs if and only if the period L of the steady state
solution is an increasing function of its amplitude A.
This statement is rigorously proved for two important classes of conserved
and nonconserved equations: the generalized Ginzburg-Landau and
Cahn-Hilliard equations. We provide further evidence of the relation between
coarsening and the behavior of L(A) through the numerical solution of more
complicated growth equations, which are physically relevant in the context
of crystal growth. Finally, we discuss the possibility that our theory can
be used to determine the time dependence of the length scale, L(t), when
coarsening occurs.
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＃代理投稿です。
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小西 哲郎 名古屋大学理学部物理Ｒ研 fax: 052(789)2906
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