Capturing nonexponential dynamics in the presence of two decay channels

  title={Capturing nonexponential dynamics in the presence of two decay channels},
  author={Francesco Giacosa and Przemyslaw Ko'scik and Tomasz Sowi'nski},
  journal={Physical Review A},
The most unstable quantum states and elementary particles possess more than a single decay channel. At the same time, it is well known that typically the decay law is not simply exponential. Therefore, it is natural to ask how to spot the non-exponential decay when (at least) two decay channels are opened. In this work, we study the tunneling phenomenon of an initially localized particle in two spatially opposite directions through two different barriers, mimicking two decay channels. In this… 

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