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arXiv · 1212.3325

Spin dynamics in tunneling decay of a metastable state

Yue Ban·E. Ya. Sherman
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Abstract

We analyze spin dynamics in the tunneling decay of a metastable localized state in the presence of spin-orbit coupling. We find that the spin polarization at short time scales is affected by the initial state while at long time scales both the probability- and the spin density exhibit diffraction-in-time phenomenon. We find that in addition to the tunneling time the tunneling in general can be characterized by a new parameter, the tunneling length. Although the tunneling length is independent on the spin-orbit coupling, it can be accessed by the spin rotation measurement.

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Yue Ban, E. Ya. Sherman. 2012-12-13. Spin dynamics in tunneling decay of a metastable state. https://doi.org/10.1103/physreva.85.052130

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