Time-dependent approach to many-particle tunneling in one dimension

被引：26

作者：

Maruyama, Takahito ^{[1
]}

Oishi, Tomohiro ^{[1
]}

Hagino, Kouichi ^{[1
]}

Sagawa, Hiroyuki ^{[2
,3
]}

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[2] Univ Aizu, Ctr Math & Phys, Aizu Wakamatsu, Fukushima 9658560, Japan

[3] RIKEN Nishina Ctr, Wako, Saitama 3510198, Japan

来源：

PHYSICAL REVIEW C | 2012年 / 86卷 / 04期

关键词：

DECAY; MODEL; IONIZATION;

D O I：

10.1103/PhysRevC.86.044301

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

By employing the time-dependent approach, we investigate a quantum tunneling decay of many-particle systems. We apply it to a schematic one-dimensional three-body model with a heavy-core nucleus and two valence protons. We calculate the decay width for two-proton emission from the survival probability, which well obeys the exponential decay law after a sufficient time. The effect of the correlation between the two emitted protons is also studied by observing the time evolution of the two-particle density distribution. It is shown that the pairing correlation significantly enhances the probability for the simultaneous diproton decay.

引用

页数：8

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