Relativistic effects on the neutron charge form factor in the constituent quark model [PDF]
Phys.Lett. B467 (1999) 1-7, 1999 The neutron charge form factor GEn(Q**2) is investigated within a constituent quark model formulated on the light-front. It is shown that, if the quark initial motion is neglected in the Melosh rotations, the Dirac neutron form factor F1n(Q**2)$ receives a relativistic correction which cancels exactly against the Foldy term in GEn(Q**2), as it has been
Capstick +8 more
arxiv +4 more sources
Q-factor measurement of nonlinear superconductingresonators [PDF]
Electronics Letters, 2000 12 pages, 4 figures, to appear in Electronics ...
Rao, X.S., Ong, C.K., Feng, Y.P.
openaire +5 more sources
Tuning the Coherent Propagation of Organic Exciton-Polaritons through the Cavity Q-factor. [PDF]
Adv Sci (Weinh), 2023 Transport of excitons in organic materials can be enhanced through polariton formation when the interaction strength between these excitons and the confined light modes of an optical resonator exceeds their decay rates.
Tichauer RH, Sokolovskii I, Groenhof G.
europepmc +3 more sources
On Methods to Determine Bounds on the $Q$ -Factor for a Given Directivity [PDF]
IEEE Transactions on Antennas and Propagation, 2017 This paper revisit and extend the interesting case of bounds on the $Q$ -factor for a given directivity for a small antenna of arbitrary shape. A higher directivity in a small antenna is closely connected with a narrow impedance bandwidth.
B. Jonsson +4 more
semanticscholar +4 more sources
All-dielectric metasurfaces with high Q-factor Fano resonances enabling multi-scenario sensing. [PDF]
Nanophotonics, 2022 We propose and numerically demonstrate high Q-factor sensors based on all-dielectric metasurfaces, which are very sensitive to the change of the refractive index of the surrounding media and the incident angle.
Chen X +5 more
europepmc +2 more sources
Density-Based Topology Optimization in Method of Moments: Q-Factor Minimization [PDF]
IEEE Transactions on Antennas and Propagation, 2023 Classical gradient-based density topology optimization is adapted for method-of-moments numerical modeling to design a conductor-based system attaining the minimal antenna Q-factor evaluated via an energy stored operator.
J. Tucek +3 more
semanticscholar +1 more source
Broadband highly efficient nonlinear optical processes in on-chip integrated lithium niobate microdisk resonators of Q-factor above 108 [PDF]
New Journal of Physics, 2021 Microresonators of ultrahigh quality (Q) factors represent a crucial type of photonic devices aiming at ultra-high spectral resolution, ultra-high sensitivity to the environmental perturbations, and efficient nonlinear wavelength conversions at low ...
Renhong Gao +11 more
semanticscholar +1 more source
Universal light-guiding geometry for on-chip resonators having extremely high Q-factor. [PDF]
Nat Commun, 2020 By providing an effective way to leverage nonlinear phenomena in integrated devices, high-Q optical resonators have led to recent advances in on-chip photonics.
Kim DG +10 more
europepmc +2 more sources
q-Factors and Investment CAPM [PDF]
SSRN Electronic Journal, 2019 The Hou–Xue–Zhang q-factor model says that the expected return of an asset in excess of the risk-free rate is described by its sensitivities to the market factor, a size factor, an investment factor, and a return on equity (ROE) factor. Empirically, the q-factor model shows strong explanatory power and largely summarizes the cross-section of average ...
Lu Zhang, Lu Zhang
openaire +3 more sources
Sewanee Review, 2009 Active Biotech has identified S100A9 as the target of laquinimod, the company's lead autoimmune disease candidate. Because S100A9 is a known player in tumor immunosuppression, the findings may enable the company to move its quinoline-3-carboxamide compounds into the oncology space.
openaire +4 more sources