2014
DOI: 10.1590/s1806-11172014000200005
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Soluções clássicas de sistemas acoplados dependentes do tempo

Abstract: Neste trabalho estudamos um sistema clássico de dois osciladores harmônicos acoplados com massas (mi), constantes de mola (ki) e parâmetro de acoplamento (κ) dependentes do tempo. Para encontrar as soluções das equações de movimento de cada oscilador, usamos uma transformação canônica para reescrever a hamiltoniana do sistema acoplado como a soma das hamiltonianas de dois osciladores harmônicos desacoplados com frequências modificadas e massas unitárias. Analisamos o comportamento de xi, vi =ẋi e do diagrama d… Show more

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“…The justification for this change in effective mass is based on systems where there are several applications, for example, semiconductor heterostructures [19], electronic properties of the semiconductors [20], quantum wells, wires and dots [21][22][23][24], quantum liquids [25] and 3 He clusters [26]. It is noteworthy that quantum systems where mass is a function of the position is known in the literature as a position-dependent mass quantum system [27][28][29].…”
Section: Introductionmentioning
confidence: 99%
“…The justification for this change in effective mass is based on systems where there are several applications, for example, semiconductor heterostructures [19], electronic properties of the semiconductors [20], quantum wells, wires and dots [21][22][23][24], quantum liquids [25] and 3 He clusters [26]. It is noteworthy that quantum systems where mass is a function of the position is known in the literature as a position-dependent mass quantum system [27][28][29].…”
Section: Introductionmentioning
confidence: 99%