Results 91 to 100 of about 13,996,538 (367)
Is the ground state of Yang-Mills theory Coulombic? [PDF]
, 2008 We study trial states modelling the heavy quark-antiquark ground state in SU(2) Yang-Mills theory. A state describing the flux tube between quarks as a thin string of glue is found to be a poor description of the continuum ground state; the infinitesimal
A. Ilderton +9 more
core +3 more sources
The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
Population Ecology, EarlyView.We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley +1 more source
Two-State Lasing in Microdisk Laser Diodes with Quantum Dot Active Region
Photonics, 2023 The two-state lasing phenomenon, which manifests itself in simultaneous laser emission through several optical transitions of quantum dots, is studied in microdisk diode lasers with different cavity diameters.
Ivan Makhov +8 more
doaj +1 more source
Ground‐State Chemical Reactivity under Vibrational Coupling to the Vacuum Electromagnetic Field
Angewandte Chemie, 2016 The ground‐state deprotection of a simple alkynylsilane is studied under vibrational strong coupling to the zero‐point fluctuations, or vacuum electromagnetic field, of a resonant IR microfluidic cavity. The reaction rate decreased by a factor of up to 5.
Anoop Thomas +11 more
semanticscholar +1 more source
Geographic variation in walking activity in the red flour beetle Tribolium castaneum
Population Ecology, EarlyView.This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley +1 more source
Multitask Learning-Based Modulation and Signal Type Recognition for Space-Ground Integrated Networks
Space: Science & TechnologyA space-ground integrated network (SGIN) will be a future network for the heterogeneous convergence of space- and ground-based networks. The SGIN envisions satellites with the capability to adapt to various communication protocols, enabling the ...
Qiwei Zhang +3 more
doaj +1 more source
A Broadband Shared-Aperture L/S/X-Band Dual-Polarized Antenna for SAR Applications
IEEE Access, 2019 This paper presents a novel tri-band antenna with dual polarizations and shared aperture. The proposed antenna operates at L-, S-, and X-bands with an approximate frequency ratio of 1:1.9:5.5.
Ke Li, Tao Dong, Zhenghuan Xia
doaj +1 more source
Existence of Positive Ground States of Nonlocal Nonlinear Schrödinger Equations
Mathematics, 2023 We investigate ground states of a (nonlocal) nonlinear Schrödinger equation which generalizes classical (fractional, relativistic, etc.) Schrödinger equations, so that we extend relevant results and study common properties of these equations in a uniform
Yong-Chao Zhang, Yao Lu
doaj +1 more source
, 2003 Ground-state quantum computers mimic quantum mechanical time evolution within the amplitudes of a time-independent quantum state. We explore the principles that constrain this mimicking. A no-cloning argument is found to impose strong restrictions. It is
A. Ekert +6 more
core +1 more source
Dendritic cells steering antigen and leukocyte traffic in lymph nodes
FEBS Letters, EarlyView.Dendritic cells are key players in the activation of T cells and their commitment to effector function. In this In a Nutshell Review, we will discuss how dendritic cells guide the trafficking of antigen and leukocytes in the lymph node, thus influencing T‐cell activation processes. Dendritic cells (DCs) play a central role in initiating and shaping the
Enrico Dotta +3 more
wiley +1 more source