Exciton condensation and fractional charge in a bilayer two-dimensional electron gas adjacent to a superconductor film | |
Hao, Ningning ; Zhang, Ping ; Li, Jian ; Zhang, Wei ; Wang, Yupeng | |
刊名 | physical review b
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2010 | |
关键词 | QUANTUM-WELLS SYSTEM ANYONS SPIN |
DOI | 10.1103/PhysRevB.82.165317 |
英文摘要 | We study the exciton condensate (EC) in a bilayer two-dimensional electron gas adjacent to a type-II superconductor thin film with an array of pinned vortex lattices. By applying continuum low-energy theory and carrying numerical simulations of lattice model within mean-field approximation, we find that if the order parameter of EC has a vortex profile, there are exact zero modes and associated rational fractional charge for zero pseudospin potential (mu) and average chemical potential (h): mu = 0 and h = 0; while for mu not equal 0 and h = 0, intervalley coupling splits the zero-energy levels, and the system exhibits irrational fractional axial charge.; Physics, Condensed Matter; SCI(E); 0; ARTICLE; 16; 82 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/395357] ![]() |
专题 | 工学院 |
推荐引用方式 GB/T 7714 | Hao, Ningning,Zhang, Ping,Li, Jian,et al. Exciton condensation and fractional charge in a bilayer two-dimensional electron gas adjacent to a superconductor film[J]. physical review b,2010. |
APA | Hao, Ningning,Zhang, Ping,Li, Jian,Zhang, Wei,&Wang, Yupeng.(2010).Exciton condensation and fractional charge in a bilayer two-dimensional electron gas adjacent to a superconductor film.physical review b. |
MLA | Hao, Ningning,et al."Exciton condensation and fractional charge in a bilayer two-dimensional electron gas adjacent to a superconductor film".physical review b (2010). |
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