Exciton condensation and fractional charge in a bilayer two-dimensional   electron gas adjacent to a superconductor film

doi:10.1103/PhysRevB.82.165317

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	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
	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).