Search results for rotational Hamiltonians

General Physics Jun 19, 2023

Study reveals the existence of the swallowtail catastrophe in non-Hermitian systems

Researchers from the Hong Kong University of Science and Technology, Xiangtan University and Southern University of Science and Technology recently unveiled a possible connection between catastrophe theory, an area of mathematics ...

Condensed Matter Mar 14, 2023

Realization of photonic p-orbital higher-order topological insulators

In condensed matter systems, an essential characteristic of electrons besides charge and spin is the orbital degree of freedom (ODoF). It plays a crucial role in understanding unconventional properties in solid-state materials ...

Analytical Chemistry Dec 14, 2022

Breakthroughs in atomistic neural network representations for chemical dynamics simulations

A team led by Prof. Jiang Bin from the University of Science and Technology of China (USTC) made a series of breakthroughs in chemical dynamics simulations of molecular, condensed phase and interfacial systems by applying ...

Condensed Matter Aug 9, 2022

The experimental observation of long-lived phantom helix states in Heisenberg quantum magnets

Researchers at Massachusetts Institute of Technology (MIT), the MIT-Harvard Center for Ultracold Atoms, Harvard University and Stanford University have recently unveiled the existence of unique helical spin states in Heisenberg ...

Quantum Physics Apr 6, 2022

The side effects of quantum error correction and how to cope with them

It is well established that quantum error correction can improve the performance of quantum sensors. But new theory work cautions that unexpectedly, the approach can also give rise to inaccurate and misleading results—and ...

Analytical Chemistry Jan 10, 2022

Equivariant representations for molecular Hamiltonians and N-center atomic-scale properties

In the fields of chemistry and materials, most successful, widely used machine learning schemes introduced over the last decade aim to model molecular energies or interatomic potentials. Accordingly, the representations used ...

Condensed Matter Nov 24, 2021

A new topological magnet with colossal angular magnetoresistance

While electrons are well known to carry both charge and spin, only the electric charge portion is used as an information carrier in modern electronic devices. However, the limits of modern electronics and the impending end ...

Optics & Photonics Mar 16, 2021

Exploring complex graphs using three-dimensional quantum walks of correlated photons

Graph representations can solve complex problems in natural science, as patterns of connectivity can give rise to a magnitude of emergent phenomena. Graph-based approaches are specifically important during quantum communication, ...

Superconductivity Aug 27, 2020

Topological superconducting phase protected by 1-D local magnetic symmetries

Topological superconductors (TSCs) are new kind of topological quantum states with fully superconducting gapped band structure in the bulk, but they support gapless excitations called Majorana zero modes (MZMs) at the boundaries. ...

Superconductivity Feb 12, 2020

Time crystals and topological superconductors merge

"Powering a topological superconductor using a time crystal gives you more than the sum of its parts," says Jason Alicea, a researcher at California Institute of Technology (Caltech) in the US. The discovery of topological ...

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