Phononic real chern insulator

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August undefined, 2024

Web2 days ago · Here, we provide the first measurements of a phononic quadrupole insulator. We experimentally characterize the bulk, edge, and corner physics of a mechanical metamaterial and find the predicted ... WebDec 17, 2024 · Here the authors propose 3D Chern insulating cubic photonic crystals with orientable and arbitrarily large Chern numbers demonstrating topologically protected …

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WebThe real Chern number leads to a pair of hinge Fermi arcs, whereas the winding number protects a double drumhead surface bands. We develop a low-energy model for 3D graphdiyne which captures the essential topological physics. Experimental aspects and possible topological transition to a 3D real Chern insulator phase are discussed. 展开 WebApr 13, 2024 · Here, we realize a new type of topological insulator in a bilayer phononic crystal, which hosts simultaneously the first-order and second-order topologies, referred to here as the hybrid-order topological insulator. The one-dimensional gapless helical edge states, and zero-dimensional corner states coexist in the same system. fitm borneo

(PDF) Phononic real Chern insulator with protected corner …

WebJan 11, 2024 · We report the experimental realization of an acoustic Chern insulator (ACI), by using an angular-momentum-biased resonator array with the broken Lorentz reciprocity. High Q-factor resonance of the constituent rotors is leveraged to reduce the required rotation speed. ACI is a new topological acousti … WebMar 8, 2024 · N19.00001: Phononic real Chern insulator with protected corner modes in graphynes Jiaojiao Zhu, Shengyuan A Yang : Wednesday, March 8, 2024 11:42AM - 11:54AM: N19.00002: Time-Reversal Soliton Pair in Two-Dimensional Topological Insulating Systems Yi-Chun Hung, Baokai Wang, Hsin Lin, Arun Bansil : Wednesday, March 8, 2024 11:54AM - … WebFeb 17, 2024 · Magnet-free passive phononic Chern insulators To study topological phases in a PZM system, we develop a numerical method to solve the master equation, assuming … fitmax therapy pools

Experimental Demonstration of Acoustic Chern Insulators

‪Cong Chen (陈聪)‬ - ‪Google Scholar‬

WebFractional Chern insulators (FCIs) are lattice analogues of fractional quantum Hall states that may provide a new avenue towards manipulating non-Abelian excitations. Early theoretical studies 1-7 have predicted their existence in systems with flat Chern bands and highlighted the critical role of a particular quantum geometry. fit maybelline foundationWebFeb 24, 2024 · These topologically protected corner states are achieved in a finite-size sample, and the condition for their existence is discussed. Our research extends the … can humidifier make congestion worse

"WebLow-energy Hamiltonian ¶. We can also calculate the Chern number using the low-energy Hamiltonian. At Δ = − 2, the energy gap collapses at the Γ = (0, 0) point, near this point, we have. HΓ + k = kxσx + kyσy + (Δ + 2)σz. For the Hamiltonian H(k) = kxσx + kyσy + mσz, we can get the monopole field for E − state is. " - Phononic real chern insulator

Phononic real chern insulator

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Webusing a Phononic Crystal (PnC) to selectively confine elastic vibra-tions with wide-band spurious mode suppression. A unique feature of the design demonstrated here is a folded … WebPhononic real Chern insulator with protected corner modes in graphynes. J Zhu, W Wu, J Zhao, C Chen, Q Wang, XL Sheng, L Zhang, YX Zhao, ... Physical Review B 105 (8), 085123, 2024. 10: 2024: Symmetry-enforced nodal chain phonons. J Zhu, W Wu, J Zhao, H Chen, L Zhang, SA Yang.

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WebThe protected phonon corner modes are veriﬁed by the calculation on a ﬁnite-size nanodisk. In addition, we show that a 3D real Chern insulator state can be realized for … WebHere, we study phonons in 2D graphyne family materials. By using first-principle calculations and topology/symmetry analysis, we find that phonons in both graphdiyne and $\gamma$ …

WebPhononic real Chern insulator with protected corner modes in graphynes Physical Review B 2024-02-15 Journal article DOI: 10.1103/PhysRevB.105.085123 Contributors : Jiaojiao Zhu; Weikang Wu; Jianzhou Zhao; Cong Chen; Qianqian Wang; Xian-Lei Sheng; Lifa Zhang; Y. X. Zhao; Shengyuan A. Yang Show more detail Source : Crossref Webinsulators protected by time-reversal symmetry remains scarce, which are considered to be more promising in applications such as the integrated devices. Here, we report the …

WebJun 6, 2024 · Motivated by the recent experimental realizations of hyperbolic lattices in circuit quantum electrodynamics and the research interest in the non-Euclidean generalization of topological phenomena, we investigate the Chern insulator phases in a hyperbolic ${8,3}$ lattice, which is made from regular octagons (8-gons) such that the … WebOct 20, 2024 · We identify the nontrivial phononic band gaps, which are characterized by nontrivial real Chern numbers enabled by the spacetime inversion symmetry. The protected phonon corner modes are verified by the calculation on a finite-size nanodisk. Our study extends the scope of higher-order topology to phonons in real materials.

Webtronic systems, including topological insulators, topological semi-metals, and topological superconductors, which have driven the frontier of condensed matter physics and materials science for about two de-cades. However, related topological studies of phonons were scarce at that time. Similar to electrons, phonons can also be studied by crit-

WebRealizing topological insulators is of great current interest because of their remarkable properties and possible future applications. There are recent proposals, based on Floquet … can humidifier make you sickHere, we study phonons in 2D graphyne family materials. By using first-principle calculations and topology/symmetry analysis, we find that phonons in both graphdiyne and γ -graphyne exhibit a second-order topology, which belongs to the specific case known as real Chern insulator. fitmc copypastaWebMay 3, 2024 · The phononic nodal chain here is guaranteed to exist in the spectrum, associated with the vector representation induced by the real-space vector basis. It should be noted that there are also... fit maybelline foundation shadesWebDec 29, 2015 · You can see a Chern insulator as a 2D lattice version of the IQHE. (It is also called the Quantum Anomalous Hall Effect). You can go from the trivial phase to the topological phase by changing parameters in the lattice model such as the on-site or hopping energy. can humidifier make you cough redditWebJan 9, 2024 · We report the experimental realization of an acoustic Chern insulator (ACI), by using an angular-momentum-biased resonator array with the broken Lorentz reciprocity. … fit mba onlinehttp://phyx.readthedocs.io/en/latest/TI/Lecture%20notes/3.html can humidifier powder hurt marijuana plantsWebHere, we study phonons in 2D graphyne family materials. By using first-principle calculations and topology/symmetry analysis, we find that phonons in both graphdiyne and γ … fitmc fitlantis