搜索结果: 106-120 共查到“理学 coupling”相关记录301条 . 查询时间(0.051 秒)
Strong gate coupling of high-Q nanomechanical resonators
nanomechanics NEMS quantum limit detection dissipation
2010/11/24
The detection of mechanical vibrations near the quantum limit is a formidable challenge since the displacement becomes vanishingly small when the number of phonon quanta tends towards zero.
An intere...
External field influence on semiflexible macromolecules: geometric coupling
External field influence semiflexible macromolecules: geometric
2010/11/17
We suggested a geometric approach to address the external field influence on the DNA molecules, described by the WLC model via geometric coupling. It consists in the introduction of the effective metr...
Invariant Monotone Coupling Need Not Exist
Invariant Monotone Coupling Need Not Exist math
2010/11/15
We show by example that there is a Cayley graph and two invariant random subgraphs $X$ and $Y$ of it such that there exists a monotone coupling between them in the sense that $X \subset Y$ but no suc...
On the linear coupling between fast and slow MHD waves due to line-tying effects
Magnetohydrodynamics Waves Magnetic fields Sun atmosphere—Sun oscillations
2010/11/10
Context. Oscillations in coronal loops are usually interpreted in terms of uncoupled magnetohydrodynamic (MHD) waves. Examples of these waves are standing transverse motions, interpreted as the kink M...
Exploration of the phase structure of $SU(N_c)$ lattice gauge theory with many Wilson fermions at strong coupling
phase structure $SU(N_c)$ lattice gauge theory
2011/1/13
We explore aspects of the phase structure of SU(2) and SU(3) lattice gauge theories at strong
coupling with many flavours Nf of Wilson fermions in the fundamental representation, including
the relev...
Interactions of nanorod particles in the strong coupling regime
Interactions of nanorod particles strong coupling regime
2010/11/18
The plasmon coupling in a nanorod dimer obeys the exponential size dependence according to the Universal Plasmon Ruler Equation. However, it was shown recently that such a model does not hold at short...
Cladding mode coupling in highly localized fiber Bragg gratings: modal properties and transmission spectra
Cladding mode fiber Bragg gratings modal properties transmission spectra
2010/11/16
The spectral characteristics of a fiber Bragg grating (FBG) with a transversely inhomogeneous refractive index profile, differs con- siderably from that of a transversely uniform one. Transmission sp...
Spin waves in magnetic quantum wells with Coulomb interaction and $sd$ exchange coupling
Spin waves magnetic quantum wells Coulomb interaction
2010/11/24
We theoretically describe the spin excitation spectrum of a two dimensional electron gas embedded in a quantum well with localized magnetic impurities. Compared to the previous work,
we introduce equ...
Non-perturbative running of the coupling from four flavour lattice QCD with staggered quarks
Non-perturbative running coupling from four flavour lattice QCD staggered quarks
2011/1/14
Using the Schrödinger functional (SF) with a single staggered fermion field we calculate the SF
coupling in four-flavour QCD for a wide range of energies and lattice sizes up to L/a = 16.
Preli...
Effective Polyakov-loop theory for pure Yang-Mills from strong coupling expansion
Effective Polyakov-loop theory pure Yang-Mills strong coupling expansion
2011/1/13
Lattice Yang-Mills theories at finite temperature can be mapped onto effective 3d spin systems,
thus facilitating their numerical investigation.
Development in the Scattering Matrix Theory: From Spin-Orbit-Coupling Affected Shot Noise to Quantum Pumping
Scattering Matrix Theory Spin-Orbit-Coupling Affected Shot Noise Quantum Pumping
2010/11/23
The review chapter starts by a pedagogical introduction to the general concept of the scattering theory: from the fundamental wave-function picture to the second-quantization language, with the aim to...
Coupling of HOx, NOx and halogen chemistry in the antarctic boundary layer
HOx, NOx and halogen chemistry the antarctic boundary layer
2010/11/3
A modelling study of radical chemistry in the coastal Antarctic boundary layer, based upon observations performed in the course of the CHABLIS (Chemistry of the Antarctic Boundary Layer and the Interf...
Running couplings and operator mixing in the gravitational corrections to coupling constants
Running couplings operator mixing gravitational corrections
2010/12/21
The use of a running coupling constant in renormalizable theories is well known, but the imple-
mentation of this idea for effective field theories with a dimensional coupling constant is in general ...
Coarsening Kinetics of a Two Dimensional O(2) Ginzburg-Landau Model: Effect of Reversible Mode Coupling
Coarsening Kinetics Two Dimensional O(2) Ginzburg-Landau Model
2010/11/25
We investigate, via numerical simulations, the phase ordering kinetics of a two-dimensional
soft-spin O(2) Ginzburg-Landau model when a reversible mode coupling is included via the
conserved conjuga...
Contribution of interband effects caused by long-wavelength transverse optical phonons to electron-phonon coupling in doped polar insulators
Contribution of interband effects electron-phonon coupling doped polar insulators
2010/11/22
We estimate the contribution of the long-wavelength el–TO–ph interaction and discuss the effect it has on electron pairing in doped polar systems like SrTiO3 and PbTe. The analytical and numerical res...