Results 51 to 60 of about 4,127,735 (321)

NLS ground states on graphs [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2014
We investigate the existence of ground states for the subcritical NLS energy on metric graphs. In particular, we find out a topological assumption that guarantees the nonexistence of ground states, and give an example in which the assumption is not fulfilled and ground states actually exist.
ADAMI, RICCARDO   +2 more
openaire   +3 more sources

Dynamic Reporting Nodes Selection Method for Network Awareness Based on Active–Passive Integrated Network Telemetry in LEO Satellite Networks

open access: yesApplied Sciences
Satellite network awareness is a key technology for obtaining the status of onboard resources and supporting efficient network management. However, the dynamic characteristics of the network topology results in dynamic transmission delays of awareness ...
Hang Di   +5 more
doaj   +1 more source

Hybrid Monte Carlo algorithm for studying the Edwards-Anderson model

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
The complexity of the study of spin glasses is related to their frustrations, due to which classical Monte Carlo algorithms experience serious difficulties when trying to calculate such systems.
Rybin Alexey   +4 more
doaj   +1 more source

Strangeness in the baryon ground states [PDF]

open access: yesPhysics Letters B, 2012
We compute the strangeness content of the baryon octet and decuplet states based on an analysis of recent lattice simulations of the BMW, PACS, LHPC and HSC groups for the pion-mass dependence of the baryon masses. Our results rely on the relativistic chiral Lagrangian and large-$N_c$ sum rule estimates of the counter terms relevant for the baryon ...
A. Semke, M.F.M. Lutz
openaire   +2 more sources

Ground-state fractal crystals

open access: yesPhysical Review B, 2023
12 pages, 13 ...
Albert Samoilenka, Egor Babaev
openaire   +2 more sources

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation 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

Network Resource Allocation Method Based on Awareness–Prediction Joint Compensation for Low-Earth-Orbit Satellite Networks

open access: yesApplied Sciences
With the continuous expansion of low-Earth-orbit (LEO) satellite networks, the services within these networks have exhibited diverse and differentiated demand characteristics. Due to the limited onboard resources, efficient network resource allocation is
Hang Di   +5 more
doaj   +1 more source

Collective Excitations and Ground State Correlations

open access: yes, 1994
A generalized RPA formalism is presented which treats pp and ph correlations on an equal footing. The effect of these correlations on the single-particle Green function is discussed and it is demonstrated that a self-consistent treatment of the single ...
Anastasio   +33 more
core   +1 more source

Observation of Ground-State Two-Neutron Decay [PDF]

open access: yes, 2012
Neutron decay spectroscopy has become a successful tool to explore nuclear properties of nuclei with the largest neutron-to-proton ratios. Resonances in nuclei located beyond the neutron dripline are accessible by kinematic reconstruction of the decay ...
Attanayake, H.   +24 more
core   +3 more sources

Potential of the ground state of NaRb [PDF]

open access: yesPhysical Review A, 2004
The X$^{1} ^{+}$ state of NaRb was studied by Fourier transform spectroscopy. An accurate potential energy curve was derived from more than 8800 transitions in isotopomers $^{23}$Na$^{85}$Rb and $^{23}$Na$^{87}$Rb. This potential reproduces the experimental observations within their uncertainties of 0.003 \rcm to 0.007 \rcm.
Eberhard Tiemann   +5 more
openaire   +3 more sources

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