Results 11 to 20 of about 1,072,800 (324)

Riemann-Hilbert Problem with Higher Order Poles for Self-Induced Transparency with Degenerate Energy Levels [PDF]

open access: bronzeAustralian Journal of Physics, 1988
We have analysed the inverse problem for self-induced transparency with degenerate energy levels (DSIl) via the Riemann-Hilbert methodology with second order poles. The required formulae are deduced in detail and the corresponding soliton solutions are obtained. It is noticed that the profile of the single soliton is not of the usual sech type.
A. Roy Chowdhury, Mrityunjoy De
semanticscholar   +4 more sources

Description of energy levels and decay properties in 158Gd nucleus [PDF]

open access: yesЯдерна фізика та енергетика, 2023
In this paper, IBM-1 and IBM-2 with a SU(3) limit are used to describe the 158Gd isotope. The calculations of energy levels in the ground state, beta-, and gamma-bands are made up, which account for 15 energy levels.
Fahmi Sh. Radhi   +6 more
doaj   +2 more sources

Near-resonant twin-beam generation from degenerate four-wave mixing in hot 133Cs vapor enabled by field-dressed energy levels

open access: goldOptics Express, 2023
Squeezed light near an atomic resonance is beneficial for efficient atom-light quantum interfaces. It is desirable but challenging to directly generate in atoms due to excess noise from spontaneous emission and reabsorption. Here, we report on the use of energy-level modulation to actively control atomic coherence and interference in degenerate four ...
Dan Wang   +7 more
openalex   +3 more sources

Global existence and nonexistence for a class of finitely degenerate coupled parabolic systems with high initial energy level

open access: diamondDiscrete & Continuous Dynamical Systems - S, 2021
<p style='text-indent:20px;'>In this paper, we consider a class of finitely degenerate coupled parabolic systems. At high initial energy level <inline-formula><tex-math id="M1">\begin{document}$ J(u_{0})&gt;d $\end{document}</tex-math></inline-formula>, we present a new sufficient condition to describe the global ...
Yuxuan Chen, Jiangbo Han
openalex   +3 more sources

Global dynamical behavior of solutions for finite degenerate fourth-order parabolic equations with mean curvature nonlinearity

open access: yesCommunications in Analysis and Mechanics, 2023
In this work, the initial-boundary value problem for the global dynamical properties of solutions to a class of finite degenerate fourth-order parabolic equations with mean curvature nonlinearity is studied.
Yuxuan Chen
doaj   +2 more sources

Slow and fast light propagation through ladder-type atomic media with degenerate energy levels

open access: diamondFacta universitatis - series: Physics, Chemistry and Technology, 2019
We investigate the weak probe pulse propagation through the atomic medium, in the presence of the strong control laser field, under the regime of the electromagnetically induced transparency (EIT). These fields couple to the medium by forming the 3-level ladder configuration.
Nikola Filipović   +2 more
openalex   +2 more sources

Multiscale dynamics of open three-level quantum systems with two quasi-degenerate levels [PDF]

open access: yes, 2015
We consider a three-level quantum system interacting with a bosonic thermal reservoir. Two energy levels of the system are nearly degenerate but well separated from the third one.
Berman, Gennady   +2 more
core   +3 more sources

Semiclassical spectral estimates for Schrödinger operators at a critical energy level. Case of a degenerate minimum of the potential

open access: closedJournal of Mathematical Analysis and Applications, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Brice Camus
openalex   +2 more sources

The generalized relativistic harmonic oscillator with a point interaction

open access: yesHeliyon, 2021
We study the perturbation of the one-dimensional generalized relativistic harmonic oscillator (GRHO) by a Lorentz scalar delta-shaped interaction. By exactly solving the implied Dirac equation, we show that the presence of the singular potential brings ...
Y. Chargui   +2 more
doaj   +1 more source

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