Results 31 to 40 of about 260,950 (169)

The effects of wetting layer on electronic and optical properties of intersubband P-to-S transitions in strained dome-shaped InAs/GaAs quantum dots

open access: yesAIP Advances, 2014
The authors report on the impact of wetting layer thickness and quantum dot size on the electronic and optical properties of dome-shaped InAs/GaAs quantum dots (QDs) with strained potential.
Mohammadreza Shahzadeh   +1 more
doaj   +1 more source

Muon (g − 2) in the B-LSSM

open access: yesJournal of High Energy Physics, 2021
The difference between the updated experimental result on the muon anomalous magnetic dipole moment and the corresponding theoretical prediction of the standard model on that is about 4.2 standard deviations. In this work, we calculate the muon anomalous
Jin-Lei Yang   +4 more
doaj   +1 more source

Optical Activity of Spin‐Forbidden Electronic Transitions in Metal Complexes from Time‐Dependent Density Functional Theory with Spin‐Orbit Coupling

open access: yesChemistryOpen, 2022
The calculation of magnetic transition dipole moments and rotatory strengths was implemented at the zeroth‐order regular approximation (ZORA) two‐component relativistic time‐dependent density functional theory (TDDFT) level. The circular dichroism of the
Herbert D. Ludowieg   +3 more
doaj   +1 more source

Electric-field-controlled phase transition in a 2D molecular layer

open access: yesScientific Reports, 2017
Self-assembly of organic molecules is a mechanism crucial for design of molecular nanodevices. We demonstrate unprecedented control over the self-assembly, which could allow switching and patterning at scales accessible by lithography techniques.
Peter Matvija   +6 more
doaj   +1 more source

Electric dipole moment of the neutron from a flavor changing Higgs-boson

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
I consider neutron electric dipole moment contributions induced by flavor changing Standard Model Higgs boson couplings to quarks. Such couplings might stem from non-renormalizable $$SU(2)_L \times U(1)_Y$$ SU(2)L×U(1)Y invariant Lagrange terms of ...
Jan O. Eeg
doaj   +1 more source

Ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br

open access: yesnpj Quantum Materials, 2021
We perform magnetic susceptibility and magnetic torque measurements on the organic κ-(BEDT-TTF)2Hg(SCN)2Br, which is recently suggested to host an exotic quantum dipole-liquid in its low-temperature insulating phase.
Minoru Yamashita   +12 more
doaj   +1 more source

Probing neutrino dipole portal at COHERENT experiment

open access: yesJournal of High Energy Physics, 2021
Motivated by the first observation of coherent-elastic neutrino-nucleus scattering at the COHERENT experiment, we confront the neutrino dipole portal giving rise to the transition of the standard model neutrinos to sterile neutrinos with the recently ...
Arnab Dasgupta   +2 more
doaj   +1 more source

Uniaxial transition dipole moments in semiconductor quantum rings caused by broken rotational symmetry

open access: yesNature Communications, 2019
Annular semiconductor structures, or “quantum rings”, are of interest for quantum information and photonics applications. Here, the authors show that breaking rotational symmetry through elongation generates an in-plane optical transition dipole moment ...
Nicolai F. Hartmann   +9 more
doaj   +1 more source

Quantum interference in the fluorescence of a molecular system [PDF]

open access: yes, 1999
It has been observed experimentally [H.R. Xia, C.Y. Ye, and S.Y. Zhu, Phys. Rev. Lett. {\bf 77}, 1032 (1996)] that quantum interference between two molecular transitions can lead to a suppression or enhancement of spontaneous emission. This is manifested in the fluorescent intensity as a function of the detuning of the driving field from the two-photon
arxiv   +1 more source

Constraining P and CP violation in the main decay of the neutral Sigma hyperon

open access: yesPhysics Letters B, 2019
On general grounds based on quantum field theory the decay amplitude for Σ0→Λγ consists of a parity conserving magnetic and a parity violating electric dipole transition moment.
Shankar Sunil Nair   +2 more
doaj  

Home - About - Disclaimer - Privacy