Results 41 to 50 of about 101,189 (313)
Physical Review Physics Education Research, 2019 We discuss an investigation of student difficulties with the corrections to the energy spectrum of the hydrogen atom for the intermediate field Zeeman effect using degenerate perturbation theory (DPT).
Christof Keebaugh +2 more
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Quantum–Classical Mechanics: Nano-Resonance in Polymethine Dyes
Mathematics, 2022 It is well known in quantum mechanics that the theory of quantum transitions is based on the convergence of the series of time-dependent perturbation theory. This series converges in atomic and nuclear physics. However, in molecular and chemical physics,
Vladimir V. Egorov
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A new Nonrelativistic Investigation for Interactions in One-electron Atoms with Modified Vibrational-Rotational Analysis of Supersingular plus Quadratic Potential: Extended Quantum Mechanics [PDF]
Журнал нано- та електронної фізики, 2016 In our recent work, three-dimensional modified time-independent Schrödinger equation (MSE) of modified vibrational-rotational analysis of supersingular plus quadratic potential (v.r.a.s.q.) potential was solved using Boopp’s shift method instead to apply
Abdelmadjid Maireche
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The multi-faceted inverted harmonic oscillator: Chaos and complexity
SciPost Physics Core, 2021 The harmonic oscillator is the paragon of physical models; conceptually and computationally simple, yet rich enough to teach us about physics on scales that span classical mechanics to quantum field theory.
Arpan Bhattacharyya, Wissam Chemissany, S. Shajidul Haque, Jeff Murugan, Bin Yan
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Variational Approach to Gaussian Approximate Coherent States: Quantum Mechanics and Minisuperspace Field Theory [PDF]
, 1996 This paper has a dual purpose. One aim is to study the evolution of coherent states in ordinary quantum mechanics. This is done by means of a Hamiltonian approach to the evolution of the parameters that define the state. The stability of the solutions is
A. A. Minzoni +12 more
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Scientific Reports, 2023 The adaptive mutation phenomenon has been drawing the attention of biologists for several decades in evolutionist community. In this study, we propose a quantum mechanical model of adaptive mutation based on the implications of the theory of open quantum
Fatemeh Ghasemi, Arash Tirandaz
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Introduction to the theory of open quantum systems
SciPost Physics Lecture Notes, 2023 This manuscript is an edited and refined version of the lecture script for a one-semester graduate course given originally at the PhD school in the Institute of Physics of Polish Academy of Sciences in the Spring/Summer semester of 2022.
Piotr Szańkowski
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Low-Energy QCD in the Delta Regime
, 2015 We investigate properties of low-energy QCD in a finite spatial volume, but with arbitrary temperature. In the limit of small temperature and small cube size compared to the pion Compton wavelength, Leutwyler has shown that the effective theory ...
Matzelle, Matthew E., Tiburzi, Brian C.
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The Adiabatic Theorem for Quantum Systems with Spectral Degeneracy [PDF]
, 2012 By stating the adiabatic theorem of quantum mechanics in a clear and rigorous way, we establish a necessary condition and a sufficient condition for its validity, where the latter is obtained employing our recently developed adiabatic perturbation theory.
A. Messiah +2 more
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Potential Scattering in Dirac Field Theory
, 2009 We develop the potential scattering of a spinor within the context of perturbation field theory. As an application, we reproduce, up to second order in the potential, the diffusion results for a potential barrier of quantum mechanics.
A. Hansen +32 more
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