Results 271 to 280 of about 1,036,661 (329)

Photon Echoes and Degeneration of the Resonant Energy Levels

Spectroscopy Letters, 1974
Abstract The influence of the degeneration of the resonant energy levels on the photon echo intensity is investigated.
L. A. Nefediev, V. V. Samartsev, A. I. Sirasiev   +2 more
openaire   +2 more sources

Brightened Bicomponent Perovskite Nanocomposite Based on Förster Resonance Energy Transfer for Micro‐LED Displays

Advances in Materials, 2023
Lead halide perovskite quantum dots (PQDs) are making their way toward next‐generation display applications, such as serving as color conversion layers in micro‐light‐emitting‐diode (micro‐LED) arrays. Red PQDs containing iodine exhibit weaker brightness
X. Fan, Shuli Wang, Xiao Yang, Chenming Zhong, Guolong Chen, Chang-Chin Yu, Yihang Chen, Tingzhu Wu, H. Kuo, Yue Lin, Zhong Chen   +10 more
semanticscholar   +1 more source

The effect of quantum noise on the energy degeneration in a dissipative quantum two-level system

Chemical Physics Letters, 2001
Abstract The influence of noise on the energy degeneration in a periodically driven two-state system is discussed. It is shown that the degenerate energy level of the system, split by an external monochromatic field, can be restored to the degenerate state by appropriate noise.
Houwen Xin, Jiqian Zhang
openaire   +2 more sources

Exergy transfer and degeneration in thermochemical cycle reactions for hydrogen production: Novel exergy- and energy level-based methods

Energy, 2021
Abstract Thermochemical cycle is a promising way for hydrogen production. Although the Gibbs free energy function has been used to assess thermochemical cycle reactions, it is difficult to explain exergy transfer and degeneration. There is no universal principle to explain the mechanism of triggering an endothermic reaction from the viewpoint of ...
Qibin Liu, Buchu Lu, Chen Chen, Chen Chen, Fan Jiao, Fan Jiao   +5 more
openaire   +2 more sources

Ab initio calculation of energy levels of trivalent lanthanide ions.

Physical Chemistry, Chemical Physics - PCCP, 2018
The energy levels of Ln3+ ions are known to be only slightly dependent on the ion environment. This allows one to predict the spectra of f-f transitions in Ln3+ complexes using group theory and simple semiempirical models: Russell-Saunders scheme for ...
A. Freidzon, I. A. Kurbatov, V. Vovna
semanticscholar   +1 more source

Vibronic Energy Levels of a Linear Triatomic Molecule in a Degenerate Electronic State: a Unified Treatment of the Renner‐Teller Effect

, 1982
John M. Brown, Flemming Jørgensen
openalex   +2 more sources

Tunneling spectroscopy of Andreev energy levels in a quantum dot coupled to a superconductor.

Physical Review Letters, 2010
The coupling of a quantum dot with a BCS-type superconducting reservoir results in an intriguing system where low energy physics is governed by the interplay of two distinct phases, singlet and doublet. In this Letter we show that the spectrum of Andreev
R. Deacon, Y. Tanaka, A. Oiwa, R. Sakano, K. Yoshida, K. Shibata, K. Hirakawa, S. Tarucha   +7 more
semanticscholar   +1 more source

Energy levels of exciton in a gapped graphene sheet

, 2013
A theory is presented for exciton formation in a graphene sheet using the center-of-mass approximation. The energy levels and wavefunctions of exciton are calculated analytically which show that the exciton can form if the band gap of graphene is not ...
F. Fallah, M. Esmaeilzadeh
semanticscholar   +1 more source

Changes in Vertebral Strain Energy Correlate With Increased Presence of Schmorl's Nodes in Multi-Level Lumbar Disk Degeneration

Journal of Biomechanical Engineering, 2014
Patients with skipped-level disk degeneration (SLDD) were recently reported as having a higher prevalence of Schmorl's nodes than patients with contiguous multi-level disk degeneration (CMDD). Fourteen versions of a nonlinear finite element model of a lumbar spine, representing different patterns of single and multi-level disk degeneration, were ...
Bowden, AE, Samartzis, D, Nelson, TG, Von Forell, GA   +3 more
openaire   +5 more sources

The electronic spectrum of the fluoroborane free radical. I. Theoretical calculation of the vibronic energy levels of the ground and first excited electronic states.

Journal of Chemical Physics, 2009
The fluoroborane (HBF) free radical has a large vibronic interaction which splits the orbitally degenerate (2)Pi state in the linear configuration into two separate electronic states, one strongly bent and one linear.
Fumie X Sunahori, D. Clouthier, S. Carter, Riccardo Tarroni   +3 more
semanticscholar   +1 more source