Results 21 to 30 of about 19,211 (303)
Photonic Anomalous Quantum Hall Effect
Physical Review Letters, 2019 We experimentally realize a photonic analogue of the anomalous quantum Hall insulator using a two-dimensional (2D) array of coupled ring resonators. Similar to the Haldane model, our 2D array is translation invariant, has zero net gauge flux threading the lattice, and exploits next-nearest neighbor couplings to achieve a topologically non-trivial ...
Mittal, Sunil +4 more
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3D quantum Hall effect in a topological nodal-ring semimetal
Quantum Frontiers, 2023 A quantized Hall conductance (not conductivity) in three dimensions has been searched for more than 30 years. Here we explore it in 3D topological nodal-ring semimetals, by employing a minimal model describing the essential physics.
Guang-Qi Zhao +5 more
doaj +1 more source
Quantum Hall effect in quantum electrodynamics [PDF]
Physical Review B, 2009 4 pages, 2 figures, LaTeX, perturbative result ...
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, 2023 All heat conduction and radiation are electromagnetic coupling effects, including the electromagnetic coupling within the lattice of an object. The electromagnetic coupling inside the object lattice is much more complicated than the electromagnetic coupling in the vacuum.
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, 2011 These lecture notes yield an introduction to quantum Hall effects both for non-relativistic electrons in conventional 2D electron gases (such as in semiconductor heterostructures) and relativistic electrons in graphene. After a brief historical overview in chapter 1, we discuss in detail the kinetic-energy quantisation of non-relativistic and the ...
openaire +3 more sources
Dirac fermions and topological phases in magnetic topological insulator films
SciPost PhysicsWe develop a Dirac fermion theory for topological phases in magnetic topological insulator films. The theory is based on exact solutions of the energies and the wave functions for an effective model of the three-dimensional topological insulator (TI ...
Kai-Zhi Bai, Bo Fu, Shun-Qing Shen
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Progress and prospects in the quantum anomalous Hall effect
APL Materials, 2022 The quantum anomalous Hall effect refers to the quantization of the Hall effect in the absence of an applied magnetic field. The quantum anomalous Hall effect is of topological nature and well suited for field-free resistance metrology and low-power ...
Hang Chi, Jagadeesh S. Moodera
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Higher-order quantum spin Hall effect in a photonic crystal
Nature Communications, 2020 The quantum spin Hall effect is limited to one-dimensional lower boundary states which limits the possibilities for its exploitation in photonic devices.
Biye Xie +9 more
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SUSY Quantum Hall Effect on Non-Anti-Commutative Geometry
Symmetry, Integrability and Geometry: Methods and Applications, 2008 We review the recent developments of the SUSY quantum Hall effect [hep-th/0409230, hep-th/0411137, hep-th/0503162, hep-th/0606007, arXiv:0705.4527]. We introduce a SUSY formulation of the quantum Hall effect on supermanifolds.
Kazuki Hasebe
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Advanced Functional Materials, EarlyView.A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian +6 more
wiley +1 more source