Results 281 to 290 of about 743,578 (322)

Hamiltonian groups are color‐graph‐hamiltonian

Journal of Graph Theory, 1981
AbstractA group Γ is said to be color ‐graph ‐hamiltonian if Γ has a minimal generating set Δ such that the Cayley color graph DΔ(Γ) is hamiltonian. It is shown that every hamiltonian group is color ‐graph ‐hamiltonian.
Klerlein, Joseph B., Starling, A. Gregory   +1 more
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Non-KAM Hamiltonians

Physica Scripta, 1988
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Realizing the classical XY Hamiltonian in polariton simulators.

Nature Materials, 2016
The vast majority of real-life optimization problems with a large number of degrees of freedom are intractable by classical computers, since their complexity grows exponentially fast with the number of variables. Many of these problems can be mapped into
P. Lagoudakis, Matteo Silva, P. Cilibrizzi, Alexis Askitopoulos, K. Kalinin, N. Berloff, W. Langbein   +6 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.
Andrei A. Agrachev, Yuri L. Sachkov
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Stochastic surrogate Hamiltonian

The Journal of Chemical Physics, 2008
The surrogate Hamiltonian is a general scheme to simulate the many body quantum dynamics composed of a primary system coupled to a bath. The method has been based on a representative bath Hamiltonian composed of two-level systems that is able to mimic the true system-bath dynamics up to a prespecified time.
Gil, Katz, David, Gelman, Mark A, Ratner, Ronnie, Kosloff   +3 more
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Controlling Hamiltonian chaos

Physical Review E, 1993
The method for stabilizing an unstable periodic orbit in chaotic dynamical systems originally formulated by Ott, Grebogi, and Yorke (OGY) is not directly applicable to chaotic Hamiltonian systems. The reason is that an unstable periodic orbit in such systems often exhibits complex-conjugate eigenvalues at one or more of its orbit points.
, Lai, , Ding, , Grebogi
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MEMRISTOR HAMILTONIAN CIRCUITS

International Journal of Bifurcation and Chaos, 2011
We prove analytically that 2-element memristive circuits consisting of a passive linear inductor in parallel with a passive memristor, or an active memristive device, can be described explicitly by a Hamiltonian equation, whose solutions can be periodic or damped, and can be represented analytically by the constants of the motion along the circuit ...
Itoh, Makoto, Chua, Leon O.
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Generalized Hamiltonian dynamics

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1950
The author’s procedure for passing from the Lagrangian to the Hamiltonian when the momenta are not independent functions of the velocities is put into a simpler and more practical form, the main results being obtained by a direct solution of the equations provided by the consistency requirements.
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Hamiltonian methods in the theory of solitons

, 1987
L. Faddeev, L. Takhtajan
semanticscholar   +1 more source

Double Well Hamiltonians

Proceedings of the London Mathematical Society, 1984
The mathematical setup is as follows. A self-adjoint operator \(H\geq 0\) is given on the Hilbert space \(L_ 2=L_ 2(X,dx)\) on a \(\sigma\)-finite countably generated measure space. It is assumed that \[ (1)\quad e^{- tH}f\geq 0\quad for\quad all\quad t\geq 0,\quad f\geq 0\quad in\quad L_ 2. \] Certain admissible partitions of X are introduced, leading
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