Results 41 to 50 of about 587,938 (239)
Hamiltonian effective potential
Physical Review D, 1993 A Hamiltonian effective potential (the logarithm of the square of the wave functional) is defined and calculated at the tree and one loop levels in a $ ^4$ scalar field theory. The loop expansion for eigenfunctionals is equivalent to the combination of WKB expansion and an expansion around constant field configurations.
Basista, Beth, Suranyi, Peter
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, 2004 An overview of Hamiltonian systems with noncanonical Poisson structures is given. Examples of bi-Hamiltonian ode's, pde's and lattice equations are presented. Numerical integrators using generating functions, Hamiltonian splitting, symplectic Runge-Kutta
Karasözen, B.
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Ricci curvature of semi-slant warped product submanifolds in generalized complex space forms
AIMS Mathematics, 2022 The objective of this paper is to achieve the inequality for Ricci curvature of a semi-slant warped product submanifold isometrically immersed in a generalized complex space form admitting a nearly Kaehler structure in the expressions of the squared norm
Ali H. Alkhaldi +3 more
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A Bi-Hamiltonian Formulation for Triangular Systems by Perturbations
, 2001 A bi-Hamiltonian formulation is proposed for triangular systems resulted by perturbations around solutions, from which infinitely many symmetries and conserved functionals of triangular systems can be explicitly constructed, provided that one operator of
Case K. M. +9 more
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Bi-Hamiltonian Structure of the Supersymmetric Nonlinear Schrodinger Equation [PDF]
, 1995 We show that the supersymmetric nonlinear Schr\"odinger equation is a bi-Hamiltonian integrable system. We obtain the two Hamiltonian structures of the theory from the ones of the supersymmetric two boson hierarchy through a field redefinition.
Brunelli, J. C., Das, Ashok
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Conservative dissipation: How important is the Jacobi identity in the dynamics?
, 2016 Hamiltonian dynamics are characterized by a function, called the Hamiltonian, and a Poisson bracket. The Hamiltonian is a conserved quantity due to the anti-symmetry of the Poisson bracket.
Caligan, Cameron, Chandre, Cristel
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Simulating Ising-Like Models on Quantum Computer
Современные информационные технологии и IT-образование, 2023 Due to the complexity of lattice models of statistical physics, there is interest in developing new approaches to study them, including those using quantum technologies.
Andrey Andreev, Pavel Khrapov
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Stochastic Gradient Hamiltonian Monte Carlo [PDF]
, 2014 Hamiltonian Monte Carlo (HMC) sampling methods provide a mechanism for defining distant proposals with high acceptance probabilities in a Metropolis-Hastings framework, enabling more efficient exploration of the state space than standard random-walk ...
Carlos Guestrin +3 more
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, 2011 We study a diagonalizable Hamiltonian that is not at first hermitian. Requirement that a measurement shall not change one Hamiltonian eigenstate into another one with a different eigenvalue imposes that an inner product must be defined so as to make the ...
Nagao, Keiichi, Nielsen, Holger Bech
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Condensed Forms for Skew-Hamiltonian/Hamiltonian Pencils [PDF]
SIAM Journal on Matrix Analysis and Applications, 2000 Canonical forms and almost-Schur forms for a special class of pencils (real and complex skew-Hamiltonian / Hamiltonian) under \(J\)-congruences are considered in the paper. A necessary and sufficient condition for the existence of a \(J\)-Schur form is also given. The pencils studied occur for example in the theory of optimal control problems.
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