搜索结果: 1-15 共查到“物理学 Topological”相关记录94条 . 查询时间(0.109 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Topological materials: concept, theory, prediction, and detection
拓扑材料 固体物理学 量子霍尔效应
2023/4/17
物理学中许多概念是在不断地发展中的。例如人们对光、电子等的理解与它们刚开始出现时的概念已经发生了许多进化，而固体物理学中的“绝缘体”概念也是如此。近三十年来，量子霍尔效应的相关研究不仅催生了拓扑序这一新的物相分类，也推动了拓扑绝缘体这一新兴研究领域的诞生和发展。随着量子自旋霍尔效应、拓扑晶体绝缘体等工作的后续展开，人们意识到对称性可以带来新的拓扑态，同时也不断地在“普通绝缘体”中发现新的拓扑态。这...
Artificial topological matter opens new research directions
Artificial topological matter opens
2017/4/27
An international team of researchers have created a new structure that allows the tuning of topological properties in such a way as to turn on or off these unique behaviors. The structure could open u...
Gray tin exhibits novel topological electronic properties in 3D
Gray tin novel topological electronic properties 3D
2017/4/27
In a surprising new discovery, alpha-tin, commonly called gray tin, exhibits a novel electronic phase when its crystal structure is strained, putting it in a rare new class of 3D materials called topo...
2017 International Workshop:Topological matter meets quantum information
2017 International Workshop Topological matter meets quantum information
2017/3/28
The desire to store and manipulate quantum information in a protected qubit at a physical level motivated the idea of topological quantum computing, leading consequently to the search of topological q...
Theorists propose new class of topological metals with exotic electronic properties
Theorists topological metals exotic electronic properties
2017/2/16
Researchers at Princeton, Yale, and the University of Zurich have proposed a theory-based approach to characterize a class of metals that possess exotic electronic properties that could help scientist...
第四届声子晶体/声学超材料，声子传输/声子耦合与拓扑声子学国际会议（The 4th International Conference on Phononic Crystals/Metamaterials,Phonon Transport/Coupling and Topological Phononics ）
第四届 声子晶体/声学超材料，声子传输/声子耦合与拓扑声子学 国际会议
2017/1/11
“声子学（Phononics）”是近年来凝聚态物理领域发展起来的一门新兴学科。随着其相关研究工作不断从理论探索走向工程应用，工程实践驱动为该学科的发展注入了新的活力。声子学的发展体现出物理、振动、声学、热学、力学、材料和机械工程等多学科交叉融合发展的特点，受到国内外相关领域的广泛关注，展现出蓬勃的生命力和广阔的前景。声子学研究的基本对象是一种假想的虚拟粒子——“声子（Phonon）”。声子概念的提...
We present an analytical study on the resilience of topological order after a quantum quench. The system is initially prepared in the ground state of the toric-code model, and then quenched by switchi...
Probe of Three-Dimensional Chiral Topological Insulators in an Optical Lattice
Three-Dimensional Chiral Topological Insulators Optical Lattice
2016/1/22
We propose a feasible experimental scheme to realize a three-dimensional chiral topological insulator with cold fermionic atoms in an optical lattice, which is characterized by an integer topological ...
Direct Probe of Topological Order for Cold Atoms.
Direct Probe Topological Order Cold Atoms
2016/1/22
Cold-atom experiments in optical lattices offer a versatile platform to realize various topological quantum phases. A key challenge in those experiments is to unambiguously probe the topological order...
Quantized electromagnetic response of three-dimensional chiral topological insulators
Quantized electromagnetic response three-dimensional chiral topological insulators
2016/1/22
Protected by the chiral symmetry, three-dimensional chiral topological insulators are characterized by an integer-valued topological invariant. How this invariant could emerge in physical observables ...
Topological multicritical point in the phase diagram of the toric code model and three-dimensional lattice gauge Higgs model
Magnetic field the three dimensional Z2 higgs model fiction spatial direction monte carlo simulation model
2014/12/19
We construct a mapping between the two-dimensional toric code model in external magnetic fields, hz and hx, and the three-dimensional classical Ising system with plaquette interactions, which is equiv...
Topological-phase effects and path-dependent interference in microwave structures with magnetic-dipolar-mode ferrite particles
Topological-phase effects path-dependent interference microwave structures magnetic-dipolar-mode ferrite particles
2012/4/19
Different ways exist in optics to realize photons carrying nonzero orbital angular momentum. Such photons with rotating wave fronts are called twisted photons. In microwaves, twisted fields can be pro...
The Shockley model description of the surface states in topological insulators
Shockley model description surface states topological insulators
2012/2/27
We show that the surface states in topological insulators can be understood based on a well-known Shockley model, a one-dimensional tight-binding model with two atoms per elementary cell, connected vi...
Topological Insulator Magnetic Tunnel Junctions: Quantum Hall Effect and Fractional Charge via Folding
Topological Insulator Magnetic Tunnel Junctions Quantum Hall Effect Fractional Charge Folding
2012/2/27
We provide a characterization of tunneling between coupled topological insulators in 2D and 3D under the influence of a ferromagnetic layer. We explore conditions for such systems to exhibit integer q...
Exploring complex networks via topological embedding on surfaces
Complex Networks Maximal Embedded Graphs Triangulations Topological Froths Surface genus Hyperbolic networks
2011/10/8
Abstract: We demonstrate that graphs embedded on surfaces are a powerful and practical tool to generate, characterize and simulate networks with a broad range of properties. Remarkably, the study of t...