AI 中文总结
探讨复合世界线瞬子方法对恒定电磁场中带电粒子非微扰衰变的有效性，该方法在不同极限下的领先指数近似结果与其他方法一致，可用于估计质子衰变率，还提及末态粒子纠缠影响。
AI 中文摘要
本文讨论了复合世界线瞬子方法对恒定电场和磁场中带电粒子非微扰衰变的有效性。结果表明，在不同极限下，瞬子在领先指数近似中的结果与通过外场自能虚部和波函数重叠得到的结果一致。我们评论了结果在领先指数近似下对估计质子在外部电磁场中衰变率的可能应用。还简要提到了末态粒子纠缠的影响。
英文摘要
In this paper, we discuss the validity of the composite worldline instanton approach for the nonperturbative decay of charged particles in constant electric and magnetic fields. It is shown that the instanton results in the leading exponential approximation in the different limits agree with the ones obtained by the imaginary part of the self-energy in the external field and by overlap of the wave functions. We comment on the possible application of our results for the estimation of the decay rate of the proton in the external electric and magnetic field in the leading exponential approximation. The effects of entanglement of the particles in the final state are briefly mentioned.
Comments27 pages
