Topological phases of matter constitute a research area in condensed matter physics that studies quantum states distinguished by global, topological properties rather than local order parameters and symmetry breaking. This field investigates phases characterized by topological invariants (e.g., Chern numbers, Z₂ indices), robust edge or surface states, and phenomena such as quantized transport and anyonic excitations. Research focuses on topological insulators, superconductors, and semimetals, the role of symmetries and topology in band structures, and strongly correlated topological phases. It combines methods from quantum field theory, band theory, topology, and numerical many-body techniques, with implications for fault-tolerant quantum computation and novel electronic functionalities.
Topological physics, which focuses on physical quantities that remain invariant under deformations, has garnered widespread interest in different areas of physics—photonics, quantum computing, solid-state physics, acoustics, ...
Optics & Photonics
Sep 4, 2024
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Moiré superlattices, structures that arise when two layers of two-dimensional (2D) materials are overlaid with a small twist angle, have been the focus of numerous physics studies. This is because they have recently been ...
A study, published in the journal Science Bulletin and led by Dr. Haiping Hu from the Institute of Physics, Chinese Academy of Sciences (IOP, CAS), explores the non-Hermitian skin effect (NHSE) and non-Bloch bands.
Condensed Matter
Aug 30, 2024
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Researchers from the National University of Singapore (NUS) have successfully simulated higher-order topological (HOT) lattices with unprecedented accuracy using digital quantum computers. These complex lattice structures ...
Quantum Physics
Aug 30, 2024
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A collaborative research team has identified the world's first multiple Majorana zero modes (MZMs) in a single vortex of the superconducting topological crystalline insulator SnTe and exploited crystal symmetry to control ...
Superconductivity
Aug 29, 2024
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Topological materials are materials that have unusual properties that arise because their wavefunction—the physical law guiding the electrons—is knotted or twisted. Where the topological material meets the surrounding ...
Superconductivity
Aug 26, 2024
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A multi-institutional team of scientists in the United States, led by physicist Peng Wei at the University of California, Riverside, has developed a new superconductor material that could potentially be used in quantum computing ...
Superconductivity
Aug 23, 2024
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Imagine a two-dimensional flatland, instead of our three-dimensional world, where the rules of physics are turned on their head and particles like electrons defy expectations to reveal new secrets. That's exactly what a team ...
Condensed Matter
Aug 15, 2024
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The quantum Hall effect (QHE) is one of the most notable discoveries in condensed matter physics, opening the door to topological physics. Extending QHE into three dimensions is an inspiring but challenging endeavor. This ...
Condensed Matter
Jul 11, 2024
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Dr. Johan Christensen, leader of IMDEA Materials Institute's Mechanical and Acoustic Metamaterials research group, is among the researchers behind a pioneering study exploring the topological properties of metamaterials.
General Physics
Jun 21, 2024
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