Three body dwell time

Details Three body dwell time Three body dwell time

2010-05-18

arxiv.org/abs/1005.3326v2

Phys. Rev. A81, 062109 (2010)

Physics

Quantum Physics

13 pages, reference added

Scientific paper

10.1103/PhysRevA.81.062109

The lifetime of an unstable state or resonance formed as an intermediate state in two body scattering is known to be related to the dwell time or the time spent within a given region of space by the two interacting particles. This concept is extended to the case of three body systems and a relation connecting the three body dwell time with the two body dwell times of the substructures of the three body system is derived for the case of separable wave functions. The Kapur Peierls formalism is revisited to discover one of the first definitions of dwell time in literature. An extension of the Kapur Peierls formalism to the three body case shows that the lifetime of a three body resonance can indeed be given by the three body dwell time.

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