Search results for dipole matrix element

Nanophysics Jan 19, 2021

Multidimensional coherent spectroscopy reveals triplet state coherences in cesium lead-halide perovskite nanocrystals

Advanced optoelectronics require materials with newly engineered characteristics. Examples include a class of materials named metal-halide perovskites that have tremendous significance to form perovskite solar cells with ...

Superconductivity Sep 10, 2010

Superconductors face the future

Futuristic ideas for the use of superconductors, materials that allow electric current to flow without resistance, are myriad: long-distance, low-voltage electric grids with no transmission loss; fast, magnetically levitated ...

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 ...

Quantum Physics Apr 15, 2015

Quantum Criticality in life's proteins (Update)

(Phys.org)—Stuart Kauffman, from the University of Calgary, and several of his colleagues have recently published a paper on the Arxiv server titled 'Quantum Criticality at the Origins of Life'. The idea of a quantum criticality, ...

Quantum Physics Nov 7, 2022

The charge dynamics of a non-centrosymmetric magnetic Weyl semimetal

In work published in npj Quantum Materials, a team led by Prof. Leonardo Degiorgi in the Department of Physics at ETH Zurich has studied the broadband charge dynamics (i.e., longitudinal optical conductivity) of the ferromagnetic ...

Superconductivity Feb 13, 2014

Superconductivity in orbit: Scientists find new path to loss-free electricity

(Phys.org) —Armed with just the right atomic arrangements, superconductors allow electricity to flow without loss and radically enhance energy generation, delivery, and storage. Scientists tweak these superconductor recipes ...