二维和三维的逆时不变拓扑超导体和超流体。

IF 8.1 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Physical review letters Pub Date : 2009-05-08 Epub Date: 2009-05-04 DOI:10.1103/PhysRevLett.102.187001

Xiao-Liang Qi, Taylor L Hughes, S Raghu, Shou-Cheng Zhang

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引用次数: 422

摘要

我们在二维和三维空间构造了时间反转不变的拓扑超导体和超流体。这些状态在整体上具有完整的配对间隙，在边界处具有无间隙反传播的马约拉纳状态，并且与每个涡旋相关的一对马约拉纳零模式。超流体3He B相提供了拓扑超流动性的物理实现，具有实验可测量的表面态，受到时间反转对称性的保护。我们证明了时间反转对称自然地以超对称的形式出现，它改变了与每个时间反转不变涡旋相关的费米子数的宇称，并将每个涡旋与其超级伙伴连接起来。

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Time-reversal-invariant topological superconductors and superfluids in two and three dimensions.

We construct time-reversal invariant topological superconductors and superfluids in two and three dimensions. These states have a full pairing gap in the bulk, gapless counterpropagating Majorana states at the boundary, and a pair of Majorana zero modes associated with each vortex. The superfluid 3He B phase provides a physical realization of the topological superfluidity, with experimentally measurable surface states protected by the time-reversal symmetry. We show that the time-reversal symmetry naturally emerges as a supersymmetry, which changes the parity of the fermion number associated with each time-reversal invariant vortex and connects each vortex with its superpartner.

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来源期刊

Physical review letters 物理-物理：综合

CiteScore

16.50

自引率

7.00%

发文量

2673

审稿时长

2.2 months

期刊介绍： Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics: General physics, including statistical and quantum mechanics and quantum information Gravitation, astrophysics, and cosmology Elementary particles and fields Nuclear physics Atomic, molecular, and optical physics Nonlinear dynamics, fluid dynamics, and classical optics Plasma and beam physics Condensed matter and materials physics Polymers, soft matter, biological, climate and interdisciplinary physics, including networks