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arXiv quant-ph/9705012quant-ph
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指数衰减高阶S矩阵极点的共振

Resonances from Higher Order S-Matrix Poles with Exponential Decay

C. Puntmann, P. Patuleanu

摘要:

类似于描述来自一阶S矩阵极点的共振态的伽莫夫向量,可以定义来自S矩阵的高阶极点的伽莫夫向量。有了这些向量,我们将讨论一个描述高阶极点的指数衰减共振的密度算子。

英文摘要:

In analogy to Gamow vectors describing resonance states from first order S-matrix poles, one can define Gamow vectors from higher order poles of the S-matrix. With these vectors we are going to discuss a density operator that describes exponentially decaying resonances from higher order poles.

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