Results 321 to 330 of about 22,561,015 (383)

Digital simulation of zero-temperature spontaneous symmetry breaking in a superconducting lattice processor. [PDF]

Nat Commun
Hu CK, Xie G, Poulsen K, Zhou Y, Chu J, Liu C, Zhou R, Yuan H, Shen Y, Liu S, Zinner NT, Tan D, Santos AC, Yu D.   +13 more
europepmc   +1 more source

Constructing Dynamical Symmetries for Quantum Computing: Applications to Coherent Dynamics in Coupled Quantum Dots. [PDF]

Nanomaterials (Basel)
Hamilton JR, Levine RD, Remacle F.
europepmc   +1 more source

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Anomalous Fluctuations for a Perturbed Hamiltonian System with Exponential Interactions

, 2012
A one-dimensional Hamiltonian system with exponential interactions perturbed by a conservative noise is considered. It is proved that energy superdiffuses and upper and lower bounds describing this anomalous diffusion are obtained.
C. Bernardin, P. Gonçalves
semanticscholar   +1 more source

Diffusion in Hamiltonian systems

Chaos: An Interdisciplinary Journal of Nonlinear Science, 1998
The study is reported of a diffusion in a model of degenerate Hamiltonian systems. The Hamiltonian under consideration is the sum of a linear function of action variables and a periodic function of angle variables. Under certain choices of these functions the diffusion of action variables exists. In the case of two degrees of freedom during the process
N. G. Moshchevitin, V. V. Kozlov
openaire   +3 more sources

Structure-Preserving Stabilization for Hamiltonian System and its Applications in Solar Sail

, 2009
A structure-preserving controller is constructed to stabilize a hyperbolic Hamiltonian system. Bounded orbits for the planar solar sail three-body problem are generated by means of the controller. The invariant (stable, unstable, and center) manifolds of
Ming Xu, Shijie Xu
semanticscholar   +1 more source

Transport in Hamiltonian Systems

Physica D: Nonlinear Phenomena, 1984
Abstract We develop a theory of transport in Hamiltonian systems in the context of iteration of area-preserving maps. Invariant closed curves present complete barriers to transport, but in regions without such curves there are still invariant Cantor sets named cantori, which appear to form partial barriers. The flux through the gaps of the cantori is
Robert S. MacKay, James D. Meiss, Ian C. Percival   +2 more
openaire   +2 more sources

Abelian integrals and the reduction method for an integrable Hamiltonian system

, 1985
A classical finite‐dimensional integrable Hamiltonian system, corresponding to the motion of a particle constrained to an n‐dimensional sphere ∑nμ=0 x2μ=1, with the Hamiltonian H=∑μ( (1)/(2) y2μ+u2μ/x2μ +eαμx2μ) (where uμ, αμ, and e are constants and yμ ...
L. Gagnon, J. Harnad, P. Winternitz, J. Hurtubise   +3 more
semanticscholar   +1 more source

Hamiltonian Systems with Convex Hamiltonians

2004
A well-known theorem states that if a level surface of a Hamiltonian is convex, then it contains a periodic trajectory of the Hamiltonian system [142], [147]. In this chapter we prove a more general statement as an application of optimal control theory for linear systems.
Yuri L. Sachkov, Andrei A. Agrachev
openaire   +2 more sources

ON THE SPECTRUM OF A SINGULAR HAMILTONIAN SYSTEM

, 1982
In this paper we connect the function-theoretic properties of the matrix Titchmarsh-Weyl M(λ) function with the spectrum of a linear Hamiltonian system.
D. Hinton, J. K. Shaw
semanticscholar   +1 more source

INSTABILITY IN A HAMILTONIAN SYSTEM AND THE DISTRIBUTION OF ASTEROIDS

, 1970
The formal stability of periodic solutions is investigated for a Hamiltonian system in two degrees of freedom. The nature of the zones of instability is exhibited in the case of a resonance of order q≥3.
A. D. Brjuno
semanticscholar   +1 more source