Effective theory of quadratic degeneracies

Effective theory of quadratic degeneracies

We present an effective theory for the Bloch functions of a two-dimensional square lattice near a quadratic degeneracy point. The degeneracy is protected by the symmetries of the crystal, and breaking these symmetries can either open a band gap or split the degeneracy into a pair of linear degenerac...

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書目詳細資料
Main Authors:	Soljačić, Marin, Chong, Yidong, Wen, Xiao-Gang
其他作者:	School of Physical and Mathematical Sciences
格式:	Article
語言:	English
出版:	2013
主題:	DRNTU::Science::Physics
在線閱讀:	https://hdl.handle.net/10356/101039 http://hdl.handle.net/10220/18344
標簽:	添加標簽沒有標簽, 成為第一個標記此記錄!
機構:	Nanyang Technological University
語言:	English

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