نتایج جستجو برای: quantum mechanical investigation
تعداد نتایج: 833728 فیلتر نتایج به سال:
in this letter we have proposed a new regularization scheme to deal with the divergent integralsoccurring in the quantum mechanical problem of calculating the bound state energy of the delta-functionpotential in two and three dimensions. based on the schwinger parameterization technique we argue thatthere are no infinities even in d dimensions. in this way we were able to compare our proposal w...
The propagation of nonlinear quantum dust ion-acoustic (QDIA) solitary waves in a unmagnetized quantum plasma whose constituents are inertialess quantum electrons and positrons, classical cold ions and stationary negative dust grains are studied by deriving the Korteweg–de Vries (KdV) equation under the reductive perturbation method. Quantum Hydrodynamic (QHD) equations are used to take into ...
Many hydrogen transfer processes exhibit nonclassical behavior due to inherent quantum mechanical properties of the hydrogen. Investigation of various enzymes under physiological conditions indicates that hydrogen transfer processes often show significant quantum mechanical behavior. Traditionally, this phenomenon was treated in terms of a tunneling correction to classical or semiclassical mode...
We continue our earlier investigation of the backreaction problem in semiclassical gravity with the Schwinger-Keldysh or closed-time-path (CTP) functional formalism using the language of the decoherent history formulation of quantum mechanics. Making use of its intimate relation with the Feynman-Vernon influence functional (IF) method, we examine the statistical mechanical meaning and show the ...
Mechanism of Ag(I)-catalyzed azide-alkyne cycloaddition reaction: a quantum mechanical investigation
The mononuclear and binuclear mechanisms of Ag(I)-catalyzed azide-alkyne cycloaddition (AgAAC) reaction benzyl azide with phenyl alkyne in gas phase the presence toluene as a solvent for formation 1,4-disubstituted 1,2,3-triazoles have been investigated by DFT calculations using MN12-L MN15-L functionals both basis sets Def2-TZVP including pseudopotential Ag Def2-SVP mean elements. effect PPh3,...
conclusions all treatment modalities showed a significant analgesic effect on cnbp in rats, being most prominent with the quantum light therapy. results analgesic effects were observed with all treatment regimens; however, the most prominent median analgesic effect was shown in the quantum light therapy in combination with acupuncture for estrogen-induced cnbp (pf1 = 663.9, pf2 = 403.4) (p = 0....
In this paper we have solved analytically the Schrödinger equation for a microscopic particle in a one-dimensional box with two infinite walls, which the potential function inside it, has a linear form. Based on the solutions of this special quantum mechanical system, we have shown that as the quantum number approaches infinity the expectation values of microscopic particle position and square ...
a new derivation of the quantum boltzmann transport equation for the fermion system from the quantum time evolution equation for the wigner distribution function is presented. the method exhibits the origin of the time - irreversibility of the boltzmann equation. in the present work, the spin dependent and indistinguishibility of particles are also considered.
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