Results 61 to 70 of about 8,969,614 (208)

Antiferromagnetic sawtooth chain with Heisenberg and Ising bonds

open access: yesCondensed Matter Physics, 2009
The sawtooth chain with pairs of S=1/2 spins interacting with XXZ-interactions placed on each second tooth is considered. All other interaction bonds are taken to be of Ising type.
V. Ohanyan
doaj   +1 more source

Constructing exact symmetric informationally complete measurements from numerical solutions [PDF]

open access: yes, 2017
Recently, several intriguing conjectures have been proposed connecting symmetric informationally complete quantum measurements (SIC POVMs, or SICs) and algebraic number theory.
David Marcus Appleby   +3 more
semanticscholar   +1 more source

The Hyperbolically Symmetric Black Hole

open access: yesEntropy
We describe some properties of the hyperbolically symmetric black hole (hereafter referred to as the HSBH) proposed a few years ago. We start by explaining the main motivation behind such an idea, and we determine the main differences between this ...
Luis Herrera, Louis Witten
doaj   +1 more source

Exact Solutions Superimposed with Nonlinear Plane Waves

open access: yesInternational Journal of Differential Equations, 2016
The flow of fluid in atmosphere and ocean is governed by rotating stratified Boussinesq equations. Through the literature, we found that many researchers are trying to find the solutions of rotating stratified Boussinesq equations. In this paper, we have
B. S. Desale, Vivek Sharma
doaj   +1 more source

Numerical and exact solutions for time fractional Burgers' equation

open access: yes, 2017
The main purpose of this paper is to find an exact solution of the traveling wave equation of a nonlinear time fractional Burgers’ equation using the expansion method and the Cole-Hopf transformation. For this purpose, a nonlinear time fractional Burgers’
A. Yokuş, D. Kaya
semanticscholar   +1 more source

Exact Solutions for Some Fractional Differential Equations

open access: yesAdvances in Mathematical Physics, 2015
The extended Jacobi elliptic function expansion method is used for solving fractional differential equations in the sense of Jumarie’s modified Riemann-Liouville derivative.
Abdullah Sonmezoglu
doaj   +1 more source

Exact Solutions for a Modified Schrödinger Equation

open access: yesMathematics, 2019
The aim of this paper was to propose a systematic study of a ( 1 + 1 ) -dimensional higher order nonlinear Schrödinger equation, arising in two different contexts regarding the biological science and the nonlinear optics.
Yassine Benia   +2 more
doaj   +1 more source

Exact solutions for the static bending of Euler-Bernoulli beams using Eringen’s two-phase local/nonlocal model

open access: yes, 2016
Though widely used in modelling nano- and micro- structures, Eringen’s differential model shows some inconsistencies and recent study has demonstrated its differences between the integral model, which then implies the necessity of using the latter model.
Y.-B. Wang, Xiaowu Zhu, Hui-Hui Dai
semanticscholar   +1 more source

New Exact Superposition Solutions to KdV2 Equation

open access: yesAdvances in Mathematical Physics, 2018
New exact solutions to the KdV2 equation (also known as the extended KdV equation) are constructed. The KdV2 equation is a second-order approximation of the set of Boussinesq’s equations for shallow water waves which in first-order approximation yields ...
Piotr Rozmej, Anna Karczewska
doaj   +1 more source

Exact Solutions for Pairing Interactions [PDF]

open access: yes, 2013
The exact solution of the BCS pairing Hamiltonian was found by Richardson in 1963. While little attention was paid to this exactly solvable model in the remainder of the 20th century, there was a burst of work at the beginning of this century focusing on its applications in different areas of quantum physics.
Dukelsky, J., Pittel, S.
openaire   +2 more sources

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