Results 41 to 50 of about 1,894,382 (325)

Dynamical Mean-Field Theory for Markovian Open Quantum Many-Body Systems

open access: yesPhysical Review X, 2021
A number of experimental platforms relevant for quantum simulations, ranging from arrays of superconducting circuits hosting correlated states of light to ultracold atoms in optical lattices in the presence of controlled dissipative processes, are ...
Orazio Scarlatella   +3 more
doaj   +1 more source

Extrasolar planetary dynamics with a generalized planar Laplace-Lagrange secular theory [PDF]

open access: yes, 2007
The dynamical evolution of nearly half of the known extrasolar planets in multiple-planet systems may be dominated by secular perturbations. The commonly high eccentricities of the planetary orbits calls into question the utility of the traditional ...
Brouwer D.   +8 more
core   +2 more sources

Explorando sistemas hamiltonianos: estudo analítico

open access: yesRevista Brasileira de Ensino de Física
Um pêndulo duplo submetido a torques externos é usado para introduzir alguns fundamentos da teoria de Sistemas Dinâmicos para os cursos de graduação em Física, logo após o aluno ter cursado a disciplina de mecânica analítica.
G.A. Monerat   +4 more
doaj   +1 more source

Economic Circuit Theory: Electrical Network Theory for Dynamical Economic Systems

open access: yesIEEE Access
In this paper, we develop what we refer to as economic circuit theory. Our purpose is to exploit the proven effectiveness of electrical circuit theory for the design, modeling, and analysis of complex electrical networks to economic systems; in ...
Coen Hutters, Max B. Mendel
doaj   +1 more source

Effects of chronic browsing on life‐history traits of an irruptive large herbivore population

open access: yesPopulation Ecology, EarlyView.
This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji   +9 more
wiley   +1 more source

Dynamical systems theory for nonlinear evolution equations

open access: yes, 2010
We observe that the fully nonlinear evolution equations of Rosenau and Hymann, often abbreviated as $K(n,\,m)$ equations, can be reduced to Hamiltonian form only on a zero-energy hypersurface belonging to some potential function associated with the ...
Choudhuri, Amitava   +2 more
core   +1 more source

Scaled seismotectonic models of megathrust seismic cycles through the lens of dynamical system theory

open access: yesSeismica
We investigate the physics of laboratory earthquakes in scaled seismotectonic models of megathrust seismic cycles. We study models of different sizes, materials, deformation rates, and frictional configurations.
Fabio Corbi   +3 more
doaj   +1 more source

Combining transient dynamics and logistic‐asymptotic growth to study the recovery of two seabird populations after rat eradication

open access: yesPopulation Ecology, EarlyView.
This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier   +6 more
wiley   +1 more source

Introduction to Supersymmetric Theory of Stochastics

open access: yesEntropy, 2016
Many natural and engineered dynamical systems, including all living objects, exhibit signatures of what can be called spontaneous dynamical long-range order (DLRO).
Igor V. Ovchinnikov
doaj   +1 more source

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

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