We demonstrate that for systems experiencing spontaneous (internal) symmetry breaking, the Quantum Yang Baxter Equations (QYBE) can be interpreted as the superposition of all the possible vacuum expectation values of the order parameter. In this way, the Nambu-Goldstone theorem is just a natural consequence of the constraints imposed by the relations (QYBE). Then we can conclude that the dynamic describing the interaction of pairs of Nambu-Goldstone bosons is governed by QYBE. This unsuspected connection between these two concepts, solves in a natural way the important problem of counting the Nambu-Goldstone bosons as well as the unusual observed dispersion relations in some situations.
8月9日
3:00pm - 4:00pm
地点
Room 4504, Academic Building (near Lifts 25-26)
讲者/表演者
Dr. Ivan Arraut
The Open University of Hong Kong
The Open University of Hong Kong
主办单位
Department of Mathematics
联系方法
mathseminar@ust.hk
付款详情
对象
Alumni, Faculty and Staff, PG Students, UG Students
语言
英语
其他活动
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研讨会, 演讲, 讲座
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Abstract
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研讨会, 演讲, 讲座
IAS / School of Science Joint Lecture - Some Theorems in the Representation Theory of Classical Lie Groups
Abstract
After introducing some basic notions in the representation theory of classical Lie groups, the speaker will explain three results in this theory: the multiplicity one theorem for classical...