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Larmor precession and tunneling time of a relativistic neutral spinning particle through an arbitrary potential barrier

Zhi-Jian Li·Jiu-Qing. Liang·D. H. Kobe
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Abstract

The Larmor precession of a relativistic neutral spin-1/2 particle in a uniform constant magnetic field confined to the region of a one-dimensional arbitrary potential barrier is investigated. The spin precession serves as a clock to measure the time spent by a quantum particle traversing a potential barrier. With the help of general spin coherent state it is explicitly shown that the precession time is equal to the dwell time.

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Zhi-Jian Li, Jiu-Qing. Liang, D. H. Kobe. 2001-11-22. Larmor precession and tunneling time of a relativistic neutral spinning particle through an arbitrary potential barrier. https://doi.org/10.1103/physreva.65.024101

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