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Magnet$/$superconductor hybrids (MSHs) hold the promise to host emergent topological superconducting phases. Both one-dimensional (1D) and two-dimensional (2D) magnetic systems in proximity to s-wave superconductors have shown evidence of…

Time Reversal Symmetry (TRS) broken topological phases provide gapless surface states protected by topology, regardless of additional internal symmetries, spin or valley degrees of freedom. Despite the numerous demonstrations of 2D…

Three dimensional materials with strong spin-orbit coupling and magnetic interactions represent an opportunity to realize a variety of rare and potentially useful topological phases. In this work, we use first principles calculations to…

材料科学 · 物理学 2019-05-29 Sugata Chowdhury , Kevin F. Garrity , Francesca Tavazza

The configuration space network (CSN) of a dynamical system is an effective approach to represent the ensemble of configurations sampled during a simulation and their dynamic connectivity. To elucidate the connection between the CSN…

We introduce topological phases of matter defined by skyrmions in the ground state spin -- or pseudospin -- expectation value textures in the Brillouin zone, the chiral and helical topological skyrmion phases of matter. These phases are…

超导电性 · 物理学 2023-03-10 Ashley M. Cook

SnTe materials are know to be a platform for realization of various strong and symmetry protected topological phases in one, two and three spatial dimensions. We study symmetry-protected topological states in $[110]$ SnTe nanowires in the…

介观与纳米尺度物理 · 物理学 2024-07-24 Alicja Kawala , Wojciech Brzezicki

When interacting spins in condensed matter order ferromagnetically, their ground state wave function is topologically trivial. Nonetheless, in two dimensions, the ferromagnetic state can support spin excitations with nontrivial topology, an…

介观与纳米尺度物理 · 物理学 2021-07-14 Alexander Mook , Sebastián A. Díaz , Jelena Klinovaja , Daniel Loss

Topological valley photonics has emerged as a new frontier in photonics with many promising applications. Previous valley boundary transport relies on kink states at internal boundaries between two topologically distinct domains. However,…

应用物理 · 物理学 2021-09-07 Rui Xi , Qiaolu Chen , Qinghui Yan , Li Zhang , Fujia Chen , Ying Li , Hongsheng Chen , Yihao Yang

The discovery of topological semimetals with multifold band crossings has opened up a new and exciting frontier in the field of topological physics. These materials exhibit large Chern numbers, leading to long double Fermi arcs on their…

The dynamics of soft mechanical metamaterials provides opportunities for many exciting engineering applications. Previous studies often use discrete systems, composed of rigid elements and nonlinear springs, to model the nonlinear dynamic…

计算工程、金融与科学 · 计算机科学 2022-03-01 Tianju Xue , Sigrid Adriaenssens , Sheng Mao

Recently, a new frontier in computing has emerged with physical neural networks(PNNs) harnessing intrinsic physical processes for learning. Here, we explore topological mechanical neural networks(TMNNs) inspired by the quantum spin Hall…

无序系统与神经网络 · 物理学 2025-03-12 Shuaifeng Li , Xiaoming Mao

Magnetic skyrmions are nanoscale spin textures that their thermal stability originates from the nontrivial topology in nature. Recently, a plethora of topological spin textures have been theoretically predicted or experimentally observed,…

介观与纳米尺度物理 · 物理学 2024-04-08 Yu Li , Yuzhe Zang , Runze Chen , Christoforos Moutafis

The notion of synthetic molecular communication (MC) refers to the transmission of information via molecules and is largely foreseen for use within the human body, where traditional electromagnetic wave (EM)-based communication is…

新兴技术 · 计算机科学 2025-04-16 Timo Jakumeit , Lukas Brand , Jens Kirchner , Robert Schober , Sebastian Lotter

Topological photonics has emerged as a novel paradigm for the design of electromagnetic systems from microwaves to nanophotonics. Studies to date have largely focused on the demonstration of fundamental concepts, such as non-reciprocity and…

光学 · 物理学 2020-09-30 Daniel Leykam , Luqi Yuan

We present a time-reversal invariant s-wave superconductor supporting Majorana edge modes. The multi-band character of the model together with spin-orbit coupling are key to realizing such a topological superconductor. We characterize the…

超导电性 · 物理学 2015-05-30 Shusa Deng , Lorenza Viola , Gerardo Ortiz

Metamaterials, artificially engineered materials consisting of subwavelength unit cell, have shown potentials in light manipulation with their extraordinary optical properties. Especially, topological metamaterials possessing topologically…

光学 · 物理学 2019-01-08 Minkyung Kim , Dasol Lee , Wenlong Gao , Taewoo Ha , Teun-Teun Kim , Shuang Zhang , Junsuk Rho

Recent interest in topological semimetals has lead to the proposal of many new topological phases that can be realized in real materials. Next to Dirac and Weyl systems, these include more exotic phases based on manifold band degeneracies…

The spin-orbit coupling field, an atomic magnetic field inside a Kramer's system, or discrete symmetries can create a topological torus in the Brillouin Zone and provide protected edge or surface states, which can contain relativistic…

Recent developments in topological semimetals open a way to realize relativistic dispersions in condensed matter systems. One recently studied type of topological feature is the "triple nodal point" where three bands become degenerate. In…

材料科学 · 物理学 2018-10-17 Jinwoong Kim , Heung-Sik Kim , David Vanderbilt

Topological states of quantum matter exhibit unique disorder-immune surface states protected by underlying nontrivial topological invariants of the bulk. Such immunity from backscattering makes topological surface or edge states ideal…

介观与纳米尺度物理 · 物理学 2015-11-09 S. Hossein Mousavi , Alexander B. Khanikaev , Zheng Wang