搜索结果: 1-15 共查到“理学 phonon”相关记录55条 . 查询时间(0.046 秒)
2017年光子-声子相互作用研讨会（Workshop on Photon-phonon interaction: fundamental,material and applications）
2017年 光子-声子相互作用 研讨会
2017/9/22
Photon-phonon interaction in highly confined nanoscale waveguides or microfiber through guided-wave stimulated Brillouin scattering (SBS) has recently emerged as an important area of research. Compar...
第四届声子晶体/声学超材料，声子传输/声子耦合与拓扑声子学国际会议（The 4th International Conference on Phononic Crystals/Metamaterials,Phonon Transport/Coupling and Topological Phononics ）
第四届 声子晶体/声学超材料，声子传输/声子耦合与拓扑声子学 国际会议
2017/1/11
“声子学（Phononics）”是近年来凝聚态物理领域发展起来的一门新兴学科。随着其相关研究工作不断从理论探索走向工程应用，工程实践驱动为该学科的发展注入了新的活力。声子学的发展体现出物理、振动、声学、热学、力学、材料和机械工程等多学科交叉融合发展的特点，受到国内外相关领域的广泛关注，展现出蓬勃的生命力和广阔的前景。声子学研究的基本对象是一种假想的虚拟粒子——“声子（Phonon）”。声子概念的提...
Vortex-phonon interaction
Quantization vortex superfluids vortex dynamics launch elementary excitation inelastic scattering acoustic radiation fluid turbulence
2014/12/20
Kelvin waves—helical waves on quantized vortex lines—are the normal modes of vortices in a superfluid. At zero temperature, the only dissipative channel of vortex dynamics is phonon emission. Starting...
Vortex-phonon interaction in the Kosterlitz-Thouless theory
Variables whirlpool rotating wave nonphysical small vortex
2014/12/20
The “canonical” variables of the Kosterlitz-Thouless theory—fields Φ0(r) and φ(r), generally believed to stand for vortices and phonons (or their XY equivalents, like spin waves, etc.) turn out to be ...
Discrete Kernel Preserving Model for 1D Electron-Optical Phonon Scattering
D Electron-Optical Phonon Scattering Discrete Kernel Preserving Model
2014/9/26
We investigate the discretization of of an electron-optical phonon scattering using
a nite volume method. The discretization is conservative in mass and is essentially
based on an energy point of v...
Ab initio calculation of ideal strength and phonon instability of graphene in tension
strength phonon instability graphene
2012/8/8
Graphene-based sp2-carbon nanostructures such as carbon nanotubes and nanofibers can fail
near their ideal strengths due to their exceedingly small dimensions. We have calculated the
phonon spectra ...
Pulsed THz radiation due to phonon-polariton effect in [110] ZnTe crystal
Pulsed THz radiation phonon-polariton effect ZnTe crystal Optics
2012/5/31
Pulsed terahertz (THz) radiation, generated through optical rectification (OR) by exciting [110] ZnTe crystal with ultrafast optical pulses, typically consists of only a few cycles of electromagnetic ...
On the vibron dressing in the one-dimensional macromolecular chains caused by the interaction with acoustic phonon modes
vibron polaron vibron–phonon interaction vibron dressing protein macromolecular chains
2012/4/20
We present a study of the physical properties of the vibrational excitation in the one-dimensional macromolecular chains, caused by the interaction with acoustical phonon modes. The influence of the t...
Phonon-assisted transport through suspended carbon nanotube quantum dots
Phonon-assisted transport through suspended carbon nanotube quantum dots
2014/5/28
Motivated by several recent experiments, we investigate phonon-assisted electronic transport through suspended carbon nanotube quantum dots including electron-electron, electron-phonon, and spin-orbit...
Phonon-assisted transport through suspended carbon nanotube quantum dots
Phonon-assisted transport suspended carbon nanotube quantum dots
2014/5/28
Motivated by several recent experiments, we investigate phonon-assisted electronic transport through suspended carbon nanotube quantum dots including electron-electron, electron-phonon, and spin-orbit...
Explaining the observed long coherence effects by 2D photon echo experiments in photosynthetic EET : Two-Component Phonon Spectrum model
2-D photon echo spectroscopy Quantum masterequations polaron transformation Dynamical disorder Novikov theorem
2011/9/8
We propose a simple stochastic model which successfully explains the long coherence effects observed in photosynthetic Excitation Energy Transport (EET) by 2D photon echo experiments of G. S. Engel et...
Evaluation of Phonon-level Density of UO2 by Molecular Dynamics Simulation
Molecular dynamics Phonon-level density Velocity auto-correlation function Uranium dioxide
2012/4/5
Molecular dynamics calculation of UO2 in a wide temperature range are presented and dis-cussed. The calculated lattice parameters, mean square displacements, and dynamic prop-erty of phonon-level dens...
Effect of electron-phonon coupling on transmission through Luttinger liquid hybridized with resonant level
Effect of electron-phonon Luttinger liquid hybridized resonant level
2010/11/23
We show that electron-phonon coupling strongly a ects transport properties of the Luttinger
liquid hybridized with a resonant level. Namely, this coupling signi cantly modi es the e ective energy-dep...
Chirality-dependent phonon-limited resistivity in graphenes
Chirality-dependent phonon-limited resistivity graphenes
2010/11/17
We develop a theory for the temperature and density dependence of phonon-limited resistivity
(T ) in bilayer and multilayer graphene, and compare with the corresponding monolayer result. For the uns...
Temperature-dependent chirped coherent phonon dynamics in Bi$_{2}$Te$_{3}$ using high intensity femtosecond laser pulses
Temperature-dependent chirped coherent phonon dynamics femtosecond laser pulses
2010/11/18
Degenerate pump-probe reflectivity experiments have been performed on a single crystal of
bismuth telluride (Bi2Te3) as a function of sample temperature (3K to 296K) and pump intensity
using ∼...