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研究了一维对称双势垒的定态波函数问题,并发现在这种势场分布下存在共振态.如果单个势垒的透射系数很小,则共振态能级很接近於单十有限方势阱的束缚态本征能级.“,”The stationary states in a symmetric one-dimensional double barrier are theoretically studied. Some resonant states are found in this potential distribution. The energy levels are almost the same as the eigenenergies of bound states in a square wall,provided that transmissivity of each single barrier in negligible.