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問天賣餅2捐助貴賓 (初入文壇)
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[求助]
振蕩的波函數(shù)如何求積分 已有1人參與
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我用薛定諤方程分別求出199個phi和199個psi,現(xiàn)在的問題是phi*psi后求積分求不出來,代碼如圖所示。我嘗試了很多種method都不行。求助廣大強大的網(wǎng)友,該怎么求積分呢? @月只藍 @月只藍 @beefly 發(fā)自小木蟲Android客戶端 |
捐助貴賓 (初入文壇)
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L = 1000*10^-10; F = 10^7; m = 0.0665*9.1*10^-31; mhole = 0.34*9.1*10^-31; e = 1.6*10^-19; \[HBar] = 1.05*10^-34; Ne = 199;eqn1 = (-(\[HBar]^2/(2 m))* (\[Phi]^\[Prime]\[Prime])[x] + e*F*x*\[Phi][x]);{phivals, phifuns} = NDEigensystem[{eqn1, DirichletCondition[\[Phi][x] == 0, x \[GreaterSlantEqual] L/2 || x <= -L/2]}, \[Phi][x], {x, -L/2, L/2}, Ne, Method -> {"SpatialDiscretization" -> {"FiniteElement", \ {"MeshOptions" -> {MaxCellMeasure -> 10^-9}}}}];eqn2 = (-(\[HBar]^2/(2 mhole))* (\[Psi]^\[Prime]\[Prime])[x] - e*F*x*\[Psi][x]);{psivals, psifuns} = NDEigensystem[{eqn2, DirichletCondition[[Psi][x] == 0, x [GreaterSlantEqual] L/2 || x <= -L/2]}, [Psi][x], {x, -L/2, L/2}, Ne, Method -> {"SpatialDiscretization" -> {"FiniteElement", \ {"MeshOptions" -> {MaxCellMeasure -> 10^-9}}}}];Etable = Table[(psivals + phivals[[j]])/(1.6*10^-22), {i, Ne}, {j, Ne}];Itable = Table[ Abs[NIntegrate[psifuns[]*phifuns[[j]], {x, -L/2, L/2}, Method -> {"ExtrapolatingOscillatory"}]], {i, Ne}, {j, Ne}]; |
捐助貴賓 (初入文壇)
捐助貴賓 (初入文壇)
捐助貴賓 (初入文壇)
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