| ชื่อเรื่อง | : | Effective theory of quadratic degeneracies |
| นักวิจัย | : | Chong, Yidong , Wen, Xiao-Gang , Soljačić, Marin |
| คำค้น | : | DRNTU::Science::Physics |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2551 |
| อ้างอิง | : | Chong, Y., Wen, X. G., & Soljačić, M. (2008). Effective theory of quadratic degeneracies. Physical review B, 77(23), 235125. , http://hdl.handle.net/10220/18344 , http://dx.doi.org/10.1103/PhysRevB.77.235125 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Physical review B |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | 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 degeneracies that are continuable to Dirac points. A degeneracy of this type occurs between the second and third transverse magnetic bands of a photonic crystal formed by a square lattice of dielectric rods. We show that the theory agrees with numerically computed photonic band structures and yields the correct Chern numbers induced by parity breaking. |
| บรรณานุกรม | : |
Chong, Yidong , Wen, Xiao-Gang , Soljačić, Marin . (2551). Effective theory of quadratic degeneracies.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Chong, Yidong , Wen, Xiao-Gang , Soljačić, Marin . 2551. "Effective theory of quadratic degeneracies".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Chong, Yidong , Wen, Xiao-Gang , Soljačić, Marin . "Effective theory of quadratic degeneracies."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2551. Print. Chong, Yidong , Wen, Xiao-Gang , Soljačić, Marin . Effective theory of quadratic degeneracies. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2551.
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