Jackiw-Rebbi-type bound state carrying fractional fermion parity

doi:http://dx.doi.org/10.1088/1742-5468/2015/02/P02013

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	Xiong, Y; Tong, PQ; Xiong, Y (reprint author), Nanjing Normal Univ, Dept Phys, Nanjing 210023, Jiangsu, Peoples R China.
	Jackiw-Rebbi-type bound state carrying fractional fermion parity
发表期刊	JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT (IF:2.404[JCR-2017],2.228[5-Year])
语种	英语
关键词	Fractional States (Theory) Quantum Wires (Theory) Topology And Combinatorics
摘要	We find the coexistence of two kinds of fractionalized modes, Majorana modes at the geometric ends and Jackiw-Rebbi-type bound state (JRBS) at a domain-wall, in a new topological superconducting phase in one-dimensional (1D) systems. Each localized JRBS carries a new fractional quantity, half of the parity of the fermion number. This induces a topological protected crossing at the zero energy for its eigenenergy. For a chain embedded with a JRBS, it is possible to switch between the occupied and the empty states of the Majorana zero energy state (MZES) by varying the strength of the external magnetic field across that crossing point. This enables a way to encode a quantum qubit into one MZES without breaking parity conservation. We propose that such JRBS and Majorana fermions may appear in two 1D models. One may be implemented in an artificial lattice with staggered hopping, staggered spin-orbital interaction and staggered superconducting pairing in cold fermion atoms. The other is a 1D semiconductor chain sandwiched between s-wave superconductor and antiferromagnet.
	2015
期号	0 页码:P02013
学科领域	Mechanics ; Physics
DOI	http://dx.doi.org/10.1088/1742-5468/2015/02/P02013
收录类别	SCI
项目资助者	State Key Program for Basic Research of China [2009CB929504, 2009CB929501] ; State Key Program for Basic Research of China [2009CB929504, 2009CB929501] ; State Key Program for Basic Research of China [2009CB929504, 2009CB929501] ; State Key Program for Basic Research of China [2009CB929504, 2009CB929501] ; National Foundation of Natural Science in China [10704040, 11175087] ; National Foundation of Natural Science in China [10704040, 11175087] ; National Foundation of Natural Science in China [10704040, 11175087] ; National Foundation of Natural Science in China [10704040, 11175087]
引用统计	正在获取...
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/21102
专题	SCI期刊论文
通讯作者	Xiong, Y (reprint author), Nanjing Normal Univ, Dept Phys, Nanjing 210023, Jiangsu, Peoples R China.
推荐引用方式 GB/T 7714	Xiong, Y,Tong, PQ,Xiong, Y . Jackiw-Rebbi-type bound state carrying fractional fermion parity[J]. JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT,2015(0):P02013.
APA	Xiong, Y,Tong, PQ,&Xiong, Y .(2015).Jackiw-Rebbi-type bound state carrying fractional fermion parity.JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT(0),P02013.
MLA	Xiong, Y,et al."Jackiw-Rebbi-type bound state carrying fractional fermion parity".JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT .0(2015):P02013.

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