Results 21 to 30 of about 1,046,576 (324)
Calculation of quasi-degenerate energy levels of two-electron ions [PDF]
Physical Review A, 2003 Accurate QED calculations of the interelectron interaction corrections for the $(1s2p)2 {}^1 P_1$, $(1s2p)2 {}^3 P_1$ two-electron configurations for ions with nuclear charge numbers $10\le Z \le 92$ are performed within the line profile approach.
G. L. Klimchitskaya +24 more
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Photoionization of Electrons in Degenerate Energy Level of Hydrogen Atom Induced by Strong Laser Pulses [PDF]
Photonics, 2022 Photoionization dynamics of bounded electrons in the ground state, the first and second excited states of a hydrogen atom, triggered by ultrashort near-infrared laser pulses, have been investigated in a transition regime (γ∼1) that offers both multiphoton and tunneling features.
Peipei Xin +4 more
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Application of quasi-degenerate perturbation theory to the calculation of rotational energy levels of methane vibrational polyads [PDF]
The Journal of Chemical Physics, 2015 In previous works, we have introduced an alternative perturbation scheme to find approximate solutions of the spectral problem for the rotation-vibration molecular Hamiltonian. An important feature of our approach is that the zero order Hamiltonian is the direct product of a purely vibrational Hamiltonian with the identity on the rotational degrees of ...
Patrick Cassam‐Chenaï +4 more
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Discrete & 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})>d $\end{document}</tex-math></inline-formula>, we present a new sufficient condition to describe the global ...
Yuxuan Chen, Jiangbo Han
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Optics 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
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The generalized relativistic harmonic oscillator with a point interaction
Heliyon, 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
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Heat rectification through single and coupled quantum dots
New Journal of Physics, 2022 We study heat rectification through quantum dots in the Coulomb blockade regime using a master equation approach. We consider both cases of two-terminal and four-terminal devices. In the two-terminal configuration, we analyze the case of a single quantum
Ludovico Tesser +5 more
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Physical Review Research, 2022 An analytic closed form solution is derived for the bound states of a two-dimensional electron gas subject to a static, inhomogeneous (1/r in plane decaying) magnetic field, including the Zeeman interaction.
Dominik Sidler +3 more
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Heliyon, 2023 In this paper, the bound state solutions of the radial Schrödinger equation are obtained in closed form under an improved Scarf II potential energy function (ISPEF) constrained by external magnetic and Aharonov-Bohm (AB) flux fields.
E.S. Eyube +6 more
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