Results 51 to 60 of about 165,267 (307)

Lissajous curves and semiclassical theory: The two-dimensional harmonic oscillator [PDF]

open access: yes, 2006
The semiclassical treatment of the two-dimensional harmonic oscillator provides an instructive example of the relation between classical motion and the quantum mechanical energy spectrum.
Brack M.   +5 more
core   +2 more sources

Quantum harmonic oscillator with time-dependent mass [PDF]

open access: yesModern physics letters B, 2017
We use the Fourier operator to transform a time-dependent mass quantum harmonic oscillator into a frequency-dependent one. Then we use Lewis–Ermakov invariants to solve the Schrödinger equation by using squeeze operators. Finally, we give two examples of
I. Ramos-Prieto   +3 more
semanticscholar   +1 more source

Information-Theoretic Models for Physical Observables

open access: yesEntropy, 2023
This work addresses J.A. Wheeler’s critical idea that all things physical are information-theoretic in origin. In this paper, we introduce a novel mathematical framework based on information geometry, using the Fisher information metric as a particular ...
D. Bernal-Casas, J. M. Oller
doaj   +1 more source

Density Profiles, Energy, and Oscillation Strength of a Quantum Dot in Two Dimensions with a Harmonic Oscillator External Potential using an Orbital-free Energy Functional Based on Thomas–Fermi Theory

open access: yesMakara Journal of Science, 2016
This research aims i) to determine the density profile and calculate the ground state energy of a quantum dot in two dimensions (2D) with a harmonic oscillator potential using orbital-free density functional theory, and ii) to understand the effect of ...
Suhufa Alfarisa   +2 more
doaj   +1 more source

High-fidelity quantum information transmission using a room-temperature nonrefrigerated lossy microwave waveguide

open access: yesScientific Reports, 2022
Quantum microwave transmission is key to realizing modular superconducting quantum computers and distributed quantum networks. A large number of incoherent photons are thermally generated within the microwave frequency spectrum.
Montasir Qasymeh, Hichem Eleuch
doaj   +1 more source

Reducibility of 1D quantum harmonic oscillator perturbed by a quasiperiodic potential with logarithmic decay [PDF]

open access: yes, 2016
In this paper we prove an infinite dimensional KAM theorem, in which the assumptions on the derivatives of the perturbation in [] are weakened from polynomial decay to logarithmic decay.
Zhiguo Wang, Zhenguo Liang
semanticscholar   +1 more source

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

open access: yesKragujevac 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   +4 more
doaj   +1 more source

Quantum Harmonic Oscillator State Control in a Squeezed Fock Basis. [PDF]

open access: yesPhysical Review Letters, 2016
We demonstrate control of a trapped-ion quantum harmonic oscillator in a squeezed Fock state basis, using engineered Hamiltonians analogous to the Jaynes-Cummings and anti-Jaynes-Cummings forms. We demonstrate that for squeezed Fock states with low n the
D. Kienzler   +5 more
semanticscholar   +1 more source

Inverted Oscillator [PDF]

open access: yes, 2006
The inverted harmonic oscillator problem is investigated quantum mechanically. The exact wave function for the confined inverted oscillator is obtained and it is shown that the associated energy eigenvalues are discrete and it is given as a linear ...
A Coruh   +8 more
core   +2 more sources

Quantum counterparts of VIIα, IIIα=1, VIα≠1 over the harmonic oscillator in semiclassical approximation; pp. 347–354 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2010
Operadic Lax representations for the harmonic oscillator are used to construct the quantum counterparts of some real 3-dimensional Lie algebras. The Jacobi operators of these quantum algebras are studied in semiclassical approximation.
Eugen Paal, Jüri Virkepu
doaj   +1 more source

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