Results 41 to 50 of about 304,578 (296)

Oscillation Results for Linear Matrix Hamiltonian Systems

open access: yesRocky Mountain Journal of Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sun, Yuan Gong, Meng, Fanwei
openaire   +2 more sources

Measure of the potential valleys of the supermembrane theory

open access: yesPhysics Letters B, 2019
We analyse the measure of the regularized matrix model of the supersymmetric potential valleys, Ω, of the Hamiltonian of non zero modes of supermembrane theory. This is the same as the Hamiltonian of the BFSS matrix model.
Lyonell Boulton   +2 more
doaj   +1 more source

Quantum chaos and regularity in $\Phi^4$ theory

open access: yes, 2003
We check the eigenvalue spectrum of the $\Phi^{4}_{1+1}$ Hamiltonian against Poisson or Wigner behavior predicted from random matrix theory. We discuss random matrix theory as a tool to discriminate the validity of a model Hamiltonian compared to an ...
Bittner   +11 more
core   +1 more source

Betatron coupling: Merging Hamiltonian and matrix approaches

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2005
Betatron coupling is usually analyzed using either matrix formalism or Hamiltonian perturbation theory. The latter is less exact but provides a better physical insight. In this paper direct relations are derived between the two formalisms.
R. Calaga, R. Tomás, A. Franchi
doaj   +1 more source

The Bi-Integrable Couplings of Two-Component Casimir-Qiao-Liu Type Hierarchy and Their Hamiltonian Structures

open access: yesAdvances in Mathematical Physics, 2016
A new type of two-component Casimir-Qiao-Liu type hierarchy (2-CQLTH) is produced from a new spectral problem and their bi-Hamiltonian structures are constructed.
Juhui Zhang, Yuqin Yao
doaj   +1 more source

Time-Dependent Hamiltonian Reconstruction Using Continuous Weak Measurements

open access: yesPRX Quantum, 2023
Reconstructing the Hamiltonian of a quantum system is an essential task for characterizing and certifying quantum processors and simulators. Existing techniques either rely on projective measurements of the system before and after coherent time evolution
Karthik Siva   +11 more
doaj   +1 more source

Hermitian Hamiltonians: Matrix versus Schr${��}$dinger's

open access: yes, 2016
We draw attention to the fact that a Hermitian matrix is always diagonalizable and has real discrete spectrum whereas the Hermitian Schr{ }dinger Hamiltonian: $H=p^2/2 +V(x)$, may not be so. For instance when $V(x)=x, x^3, -x^2$, $H$ does not have even one real discrete eigenvalue. Textbooks do not highlight this distinction. However, if $H$ has real
Ahmed, Zafar   +3 more
openaire   +2 more sources

Oscillation Criteria for Linear Matrix Hamiltonian Systems

open access: yesJournal of Differential Equations, 2000
The authors give some oscillation criteria for the linear matrix Hamiltonian system: \[ U'=A(x)U+B(x)V,\;V'=C(x)U-A^*(x)V,\tag{*} \] where \(A(x)\), \(B(x)=B^* (x)>0\) and \(C(x)=C^*(x)\) are real continuous \(n\times n\)-matrix functions on the interval \([a,\infty)\).
Kumari, I.Sowjanya, Umamaheswaram, S.
openaire   +1 more source

On the Reducibility of Quasiperiodic Linear Hamiltonian Systems and Its Applications in Schrödinger Equation

open access: yesJournal of Function Spaces, 2020
In this paper, we consider the reducibility of the quasiperiodic linear Hamiltonian system ẋ=A+εQt, where A is a constant matrix with possible multiple eigenvalues, Qt is analytic quasiperiodic with respect to t, and ε is a small parameter.
Nina Xue, Wencai Zhao
doaj   +1 more source

Action-angle variables for the Lie-Poisson Hamiltonian systems associated with the three-wave resonant interaction system

open access: yesAIMS Mathematics, 2022
The gl3(C) rational Gaudin model governed by 3×3 Lax matrix is applied to study the three-wave resonant interaction system (TWRI) under a constraint between the potentials and the eigenfunctions.
Xue Geng, Liang Guan, Dianlou Du
doaj   +1 more source

Home - About - Disclaimer - Privacy