Topological invariant for holographic Weyl-Nodal line coexisting semimetal
Sign Up to like & getrecommendations! Published in 2025 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2025)162
Abstract: The presence of a topological phase in a topological many-body system can be distinguished through the analysis of topological invariants. In the present study, the topological invariants for the strongly coupled holographic semimetals have been… read more here.
Keywords: line coexisting; weyl nodal; nodal line; topological invariants ... See more keywords
Realization of an anomalous Floquet topological system with ultracold atoms
Sign Up to like & getrecommendations! Published in 2020 at "Nature Physics"
DOI: 10.1038/s41567-020-0949-y
Abstract: Coherent control via periodic modulation, also known as Floquet engineering, has emerged as a powerful experimental method for the realization of novel quantum systems with exotic properties. In particular, it has been employed to study… read more here.
Keywords: realization anomalous; anomalous floquet; system; chern numbers ... See more keywords
Dimensional crossover of class D real-space topological invariants
Sign Up to like & getrecommendations! Published in 2025 at "Communications Physics"
DOI: 10.1038/s42005-025-02382-w
Abstract: The topological properties of a material depend on its symmetries, parameters, and spatial dimension. Changes in these properties due to parameter and symmetry variations can be understood by computing the corresponding topological invariant. Since topological… read more here.
Keywords: space topological; class; topology; real space ... See more keywords
Utilizing topological invariants for encoding and manipulating chiral phonon devices
Sign Up to like & getrecommendations! Published in 2024 at "Applied Physics Letters"
DOI: 10.1063/5.0201725
Abstract: As a fundamental degree of freedom, phonon chirality is expected to promote the development of quantum information technology just like electron spin. Currently, central to this area is the realization of efficient transmission and control… read more here.
Keywords: phonon; chiral information; topological invariants; chiral phonon ... See more keywords
Computing Classification of Interacting Fermionic Symmetry-Protected Topological Phases Using Topological Invariants
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/38/12/127101
Abstract: In recent years, great success has been achieved on the classification of symmetry-protected topological (SPT) phases for interacting fermion systems by using generalized cohomology theory. However, the explicit calculation of generalized cohomology theory is extremely… read more here.
Keywords: interacting fermionic; topological invariants; protected topological; symmetry ... See more keywords
Probe of topological invariants using quantum walks of a trapped ion in coherent state space
Sign Up to like & getrecommendations! Published in 2020 at "Chinese Physics B"
DOI: 10.1088/1674-1056/ab8893
Abstract: Probe of topological invariants using quantum walks of a trapped ion in coherent state space* Ya Meng(蒙雅)1,2, Feng Mei(梅锋)1,2,†, Gang Chen(陈刚)1,2,3,‡, and Suo-Tang Jia(贾锁堂)1,2 1State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute… read more here.
Keywords: invariants using; quantum walks; probe topological; optics ... See more keywords
Measuring topological invariants in disordered discrete-time quantum walks
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.033846
Abstract: Quantum walks constitute a versatile platform for simulating transport phenomena on discrete graphs including topological material properties while providing a high control over the relevant parameters at the same time. To experimentally access and directly… read more here.
Keywords: measuring topological; quantum walks; disorder; time ... See more keywords
Driven Hofstadter butterflies and related topological invariants
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.165411
Abstract: We combine the Hofstadter butterfly with Floquet theory studying a hopping model on the honeycomb lattice subject to a perpendicular magnetic field and illuminated with monochromatic light. We show how the deformation of the fractal… read more here.
Keywords: topological invariants; hofstadter butterflies; driven hofstadter; butterflies related ... See more keywords
Topological invariants beyond symmetry indicators: Boundary diagnostics for twofold rotationally symmetric superconductors
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.105.094518
Abstract: Topological crystalline superconductors are known to have possible higher-order topology, which results in Majorana modes on d − 2 or lower-dimensional boundaries. Given the rich possibilities of boundary signatures, it is desirable to have topological… read more here.
Keywords: topological invariants; symmetric superconductors; topology; high symmetry ... See more keywords
Direct Probe of Topological Invariants Using Bloch Oscillating Quantum Walks.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.118.130501
Abstract: The topology of a single-particle band structure plays a fundamental role in understanding a multitude of physical phenomena. Motivated by the connection between quantum walks and such topological band structures, we demonstrate that a simple… read more here.
Keywords: oscillating quantum; quantum; quantum walks; bloch oscillating ... See more keywords
Non-Hermitian Topological Invariants in Real Space.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.246801
Abstract: The topology of non-Hermitian systems is drastically shaped by the non-Hermitian skin effect, which leads to the generalized bulk-boundary correspondence and non-Bloch band theory. The essential part in formulations of bulk-boundary correspondence is a general… read more here.
Keywords: topological invariants; non hermitian; real space; topology ... See more keywords