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!!!2006年 冬学期 第1回 物性セミナー
!!講師 Prof. Yuriy Bunkov (CRTBT-CNRS, Grenoble, France)
!!題目 Superfluid 3He and cosmology
!!日時 2006年 10月 6日(金) 午後4時30分
!!場所 16号館 827
!アブストラクト
These lectures will review symmetry-breaking phase transitions in the special case of the breaking of combined symmetries and the subsequent formation of different states with different ordering. The two most interesting systems with these futures are the Universe and superfluid $^3$He.
In both cases the energy potential below the transition temperature
has a complicated multidimensional profile with many local minima and
saddle points, which correspond to different states. Consequently, not only topological defects, but also islands of different metastable states can be created. Using $^3$He we can analyse the properties and experimental onsequences of such transitions and, in particular, the first order phase transition between the two low symmetry states.
These lectures will review symmetry-breaking phase transitions in the special case of the breaking of combined symmetries and the subsequent formation of different states with different ordering. The two most interesting systems with these futures are the Universe and superfluid $^3$He.In both cases the energy potential below the transition temperature has a complicated multidimensional profile with many local minima and saddle points, which correspond to different
states. Consequently, not only topological defects, but also islands of different
metastable states can be created. Using $^3$He we can analyze the properties and experimental consequences of such transitions and, in particular, the first order phase transition between the two low symmetry states.
!宣伝用PDFビラ
{{ref 2006-1006.pdf}}
○物性セミナーのページ
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○駒場セミナーカレンダー(駒場内のみアクセス可)
http://huku.c.u-tokyo.ac.jp/cgi-bin/webcal/webcal.cgi