Time of Zener tunneling

Kieran Mullen, Eshel Ben-Jacob, Yuval Gefen, Zeev Schuss

Research output: Contribution to journalArticlepeer-review

Abstract

The time of Zener tunneling, z, is calculated for a general two-level quantum-mechanical system by two methods. In the first we determine the width of the transition profile in time. In the second we apply an oscillating perturbation and examine how the final transition probability depends upon the perturbation frequency and phase. Both methods show, given that the coupling energy between the diabatic levels is and the time rate of change of the energy is, that in the adiabatic limit z scales as and in the sudden limit z scales as (Latin small letter h with stroke/)1/2. We calculate the approximate transition probability at finite times for the two limits. The results can be applied to specific mesoscopic electronic systems.

Original languageEnglish
Pages (from-to)2543-2546
Number of pages4
JournalPhysical Review Letters
Volume62
Issue number21
DOIs
StatePublished - 1989

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