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Search results for second-order topological modes

Nanophysics May 9, 2025

A recently realized ferroelectric topology in nanomembranes enables light field manipulation

Ferroelectrics are a class of materials that exhibit so-called spontaneous electric polarization, which is the separation of electric charges that can be reversed when an external electric field is applied to them. The dipole ...

Nanophysics Mar 31, 2025

Three-site Kitaev chain enhances stability of Majorana zero modes

An international research team led by QuTech has realized a three-site Kitaev chain using semiconducting quantum dots coupled by superconducting segments in a hybrid InSb/Al nanowire. When comparing two-and three-site chains ...

Condensed Matter Apr 10, 2024

Âé¶¹ÒùÔºicists discover a novel quantum state in an elemental solid

Âé¶¹ÒùÔºicists have observed a novel quantum effect termed "hybrid topology" in a crystalline material. This finding opens up a new range of possibilities for the development of efficient materials and technologies for next-generation ...

Optics & Photonics Apr 2, 2024

A single photon emitter deterministically coupled to a topological corner state

Exploring cavity quantum electrodynamics (cQED) is pivotal for advancing quantum technology and unraveling the fundamental intricacies of light-matter interactions. A prevalent strategy involves integrating a single quantum ...

Condensed Matter Feb 22, 2024

Scientists discover exotic quantum interference effect in a topological insulator device

In a novel experiment, physicists have observed long range quantum coherence effects due to Aharonov-Bohm interference in a topological insulator-based device. This finding opens up a new realm of possibilities for the future ...

Nanophysics Jan 24, 2024

Sub-wavelength confinement of light demonstrated in indium phosphide nanocavity

As we transition to a new era in computing, there is a need for new devices that integrate electronic and photonic functionalities at the nanoscale while enhancing the interaction between photons and electrons. In an important ...

General Âé¶¹ÒùÔºics Jun 23, 2022

Discovering a hybrid skin-topological effect induced by gain and loss

Recently, Associate Professor Yong-Chun Liu of the Department of Âé¶¹ÒùÔºics and others have found the hybrid skin-topological effect induced by gain and loss and the parity-time phase transition between skin-topological modes. ...

Superconductivity Jul 16, 2021

Unconventional superconductor acts the part of a promising quantum computing platform

Scientists on the hunt for an unconventional kind of superconductor have produced the most compelling evidence to date that they've found one. In a pair of papers, researchers at the University of Maryland's (UMD) Quantum ...

Superconductivity Jul 14, 2021

Higher-order topological superconductivity in monolayer iron-based superconductor

In particle physics, a Majorana fermion is charge neutral and its antiparticle is just itself. In condensed matter physics, a Majorana zero mode (MZM) is a quasi-particle excitation that appears in the surfaces or edges of ...

Quantum Âé¶¹ÒùÔºics Jun 21, 2021

PhD student obtains the Higgs mode via dimensional crossover in quantum magnets

In 2013, François Englert and Peter Higgs won the Nobel Prize in Âé¶¹ÒùÔºics for the theoretical discovery of a mechanism that contributes to our understanding of the origin of mass of subatomic particles, which was confirmed ...

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