The quantum spin Hall effect and topological insulators
Xiao-Liang Qi,Shou-Cheng Zhang +1 more
TLDR
In topological insulators, spin-orbit coupling and time-reversal symmetry combine to form a novel state of matter predicted to have exotic physical properties as mentioned in this paper, which is called spin−orbit coupling.Abstract:
In topological insulators, spin–orbit coupling and time-reversal symmetry combine to form a novel state of matter predicted to have exotic physical properties.read more
Citations
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Anisotropic Topological Surface States on High‐Index Bi2Se3 Films
Zhongjie Xu,Xin Guo,Mengyu Yao,Hongtao He,Lin Miao,Lu Jiao,Hongchao Liu,Jiannong Wang,Dong Qian,Jin-Feng Jia,Wingkin Ho,Maohai Xie +11 more
TL;DR: A high-index topological insulator thin film, Bi2 Se3 (221), is grown on a faceted InP(001) substrate by molecular-beam epitaxy, suggesting an anisotropy along different crystallographic directions.
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Paired superfluidity and fractionalized vortices in systems of spin-orbit coupled bosons
Chao-Ming Jian,Hui Zhai +1 more
TL;DR: In this paper, the authors studied the properties of spin-orbit coupling in two dimensions and showed that thermal fluctuations will first melt the stripe order and lead to a superfluid of boson pairs.
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Topological Hamiltonian as an exact tool for topological invariants
Zhong Wang,Binghai Yan +1 more
TL;DR: In this paper, the concept of topological Hamiltonian for topological insulators and superconductors in interacting systems was proposed and shown to contain the information of gapless surface states.
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Nanoscale strain engineering of giant pseudo-magnetic fields, valley polarization, and topological channels in graphene
TL;DR: By placing strain-free monolayer graphene on architected nanostructures to induce global inversion symmetry breaking, this work demonstrates the development of giant pseudo-magnetic fields, valley polarization, and periodic one-dimensional topological channels for protected propagation of chiral modes in strained graphene, thus paving a pathway toward scalable graphene-based valleytronics.
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Light control of surface–bulk coupling by terahertz vibrational coherence in a topological insulator
Xu Yang,Liang Luo,Chirag Vaswani,Xin Zhao,Yongxin Yao,Di Cheng,Zhaoyu Liu,Richard H. J. Kim,Xinyu Liu,Malgorzata Dobrowolska-Furdyna,Jacek K. Furdyna,Ilias E. Perakis,Cai-Zhuang Wang,Kai-Ming Ho,Jigang Wang +14 more
TL;DR: In this article, the phase space in the bulk available for Dirac fermion scattering during coherent lattice oscillations in Bi2Se3 was reduced by reducing the phase spaces of the lattice vibrations periodically driven by a single-cycle terahertz (THz) pulse in topological insulators.
References
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Quantum spin Hall effect in graphene
Charles L. Kane,Eugene J. Mele +1 more
TL;DR: Graphene is converted from an ideal two-dimensional semimetallic state to a quantum spin Hall insulator and the spin and charge conductances in these edge states are calculated and the effects of temperature, chemical potential, Rashba coupling, disorder, and symmetry breaking fields are discussed.
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New Method for High-Accuracy Determination of the Fine-Structure Constant Based on Quantized Hall Resistance
TL;DR: In this article, the Hall voltage of a two-dimensional electron gas, realized with a silicon metal-oxide-semiconductor field effect transistor, was measured and it was shown that the Hall resistance at particular, experimentally well-defined surface carrier concentrations has fixed values which depend only on the fine-structure constant and speed of light, and is insensitive to the geometry of the device.
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Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
TL;DR: In this article, the quantum spin Hall (QSH) effect can be realized in mercury-cadmium telluride semiconductor quantum wells, a state of matter with topological properties distinct from those of conventional insulators.
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Z-2 Topological Order and the Quantum Spin Hall Effect
Charles L. Kane,Eugene J. Mele +1 more
TL;DR: The Z2 order of the QSH phase is established in the two band model of graphene and a generalization of the formalism applicable to multiband and interacting systems is proposed.
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Non-Abelian Anyons and Topological Quantum Computation
TL;DR: In this article, the authors describe the mathematical underpinnings of topological quantum computation and the physics of the subject are addressed, using the ''ensuremath{
u}=5∕2$ fractional quantum Hall state as the archetype of a non-Abelian topological state enabling fault-tolerant quantum computation.