Results 31 to 40 of about 151,578 (271)

Realization of a Second Harmonic Antenna for Rural Communications [PDF]

ITB Journal of Engineering Science, 2006
In this research, an active antenna operated at the second harmonic frequency is investigated, and is implemented using microstrip antenna material.
Adit Kurniawan, Ahmad Hasyim, Yuyu Wahyu
doaj  

Quantum dynamics of the damped harmonic oscillator

New Journal of Physics, 2012
The quantum theory of the damped harmonic oscillator has been a subject of continual investigation since the 1930s. The obstacle to quantization created by the dissipation of energy is usually dealt with by including a discrete set of additional harmonic
T G Philbin
doaj   +1 more source

Evolving Probability Representations of Entangled Cat States in the Potentials of Harmonic and Inverted Oscillators

Quantum Reports
We determine the evolving probability representation of entangled cat states in the potential of either the harmonic oscillator or the inverted oscillator, assuming that the states are initially prepared in the potential of the harmonic oscillator.
Matyas Mechler, Margarita A. Man’ko, Vladimir I. Man’ko, Peter Adam   +3 more
doaj   +1 more source

General Solution of the Quantum Damped Harmonic Oscillator

, 2008
In this paper the general solution of the quantum damped harmonic oscillator is given.Comment: Latex ; 10 pages ; no figure ; typos corrected.
Breuer H.-P., Fujii K., KAZUYUKI FUJII, RYUSUKE ENDO, TATSUO SUZUKI   +4 more
core   +1 more source

Empirical Rules for Oscillation and Harmonic Approximation of Fractional Kelvin–Voigt Oscillators

Applied Sciences
Fractional Kelvin–Voigt (FKV) oscillators describe vibrations in viscoelastic structures with memory effects, leading to dynamics that are often more complex than those of classical harmonic oscillators.
Paweł Łabędzki
doaj   +1 more source

Irreversible quantum graphs

, 2003
Irreversibility is introduced to quantum graphs by coupling the graphs to a bath of harmonic oscillators. The interaction which is linear in the harmonic oscillator amplitudes is localized at the vertices.
Breit G, Carlson R, Feshbach H, Feshbach H, Feynman R P, Killip R, Killip R Simon B, Kostrykin V, Kottos T, Kottos T, Kottos T, Kottos T, Kuchment P, Pauli W, Solomyak M, Uzy Smilansky, Van Hove L   +16 more
core   +1 more source

On some aspects of the dynamic behavior of the softening Duffing oscillator under harmonic excitation [PDF]

, 2016
The Duffing oscillator is probably the most popular example of a nonlinear oscillator in dynamics. Considering the case of softening Duffing oscillator with weak damping and harmonic excitation and performing standard methods like harmonic balance or ...
Lentz, Lukas, Wagner, Utz von
core   +1 more source

Exact diagonalization of the D-dimensional spatially confined quantum harmonic oscillator [PDF]

Kragujevac Journal of Science, 2016
In the existing literature various numerical techniques have been developed to quantize the confined harmonic oscillator in higher dimensions. In obtaining the energy eigenvalues, such methods often involve indirect approaches such as searching for the ...
Kunle Adegoke, Olatinwo Adenike, Otobrise Henry, Funmi Akintujoye, Tiamiyu Afees   +4 more
doaj   +1 more source

Lagrangians Galore

, 2007
Searching for a Lagrangian may seem either a trivial endeavour or an impossible task. In this paper we show that the Jacobi last multiplier associated with the Lie symmetries admitted by simple models of classical mechanics produces (too?) many ...
Leach, P. G. L., Nucci, M. C.
core   +2 more sources

A simple new iterative method for solving strongly nonlinear oscillator systems having a rational and an irrational force

Alexandria Engineering Journal, 2018
In this paper, a new noble modified iterative method is proposed to obtain the approximate solution of strongly nonlinear oscillator systems having a rational and an irrational forces. The approximate frequency and the corresponding periodic solution can
Md. Abdur Razzak
doaj   +1 more source