2010
DOI: 10.1590/s1806-11172010000400006
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Solução quântica para o poço duplo quadrado unidimensional assimétrico

Abstract: Poços de potenciais quadrados têm sido bastante explorados, tanto do ponto de vista de aplicação como introdução didáticaà mecânica quântica. Existem bem poucos potenciais desse tipo que são tratados analiticamente na literatura, embora várias geometrias envolvendo esses poços de potenciais possam ser construídas. Nesse trabalho estudamos o poço duplo quadrado unidimensional assimétrico que possui potencial para uma variedade de aplicações, por exemplo, o aprisionamento atômico devidoà diferença de profundidad… Show more

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“…The solution of the associated Schrödinger equation is analytically exact, thus allowing us to find the eigenfunctions and, with the appropriate boundary conditions, to determine the energy eigenvalues for each region of the potential. As the transfer occurs in pairs of wells, from one well to its neighbor, the solution is obtained by breaking the potential in four sets of asymmetric double wells, where each double well is regarded as the junction of two single ones, and each well confined by an infinite barrier on one side and a finite barrier on the other side [21]. Thus, the physical problem to be solved involves an asymmetrical bistable well with respect to the depths V 0 and V 1 of the two wells involved, where V 0 < V 1 , as shown in Fig.…”
Section: The One-dimensional Model Of Four Asymmetric Square Wells Potentialmentioning
confidence: 99%
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“…The solution of the associated Schrödinger equation is analytically exact, thus allowing us to find the eigenfunctions and, with the appropriate boundary conditions, to determine the energy eigenvalues for each region of the potential. As the transfer occurs in pairs of wells, from one well to its neighbor, the solution is obtained by breaking the potential in four sets of asymmetric double wells, where each double well is regarded as the junction of two single ones, and each well confined by an infinite barrier on one side and a finite barrier on the other side [21]. Thus, the physical problem to be solved involves an asymmetrical bistable well with respect to the depths V 0 and V 1 of the two wells involved, where V 0 < V 1 , as shown in Fig.…”
Section: The One-dimensional Model Of Four Asymmetric Square Wells Potentialmentioning
confidence: 99%
“…The transcendental equations obtained together with Fig. 2 Representation of first asymmetric unidimensional double square well potential, showing five different regions, I to V, with 0 < E < V 0 [21] Table 2 Wave functions and transcendental equations for the asymmetric one-dimensional double well [21], where L is the distance between the centers of the wells, a is the width of the wells, m is the electron mass, = h 2π where h is Planck's constant, V 0 and V 1 are the depths of the wells shown in Fig. 2, and E is the energy eigenvalue to be determined graphically, with two possibilities: 0 < E < V 0 and V 0 < E < V 1 Energy: 0 < E < V 0 Parameters:…”
Section: The One-dimensional Model Of Four Asymmetric Square Wells Potentialmentioning
confidence: 99%
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