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Updated: Jun 19, 2026

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
Published on: January 19, 2018
Time-resolved measurement of Landau-Zener tunneling in periodic potentials
A Zenesini1, H Lignier, G Tayebirad
1CNR-INFM and Dipartimento di Fisica E. Fermi, Largo Pontecorvo 3, 56127 Pisa, Italy.
Abstract:
We report time-resolved measurements of Landau-Zener tunneling of Bose-Einstein condensates in accelerated optical lattices, clearly resolving the steplike time dependence of the band populations. Using different experimental protocols we were able to measure the tunneling probability both in the adiabatic and in the diabatic bases of the system. We also experimentally determine the contribution of the momentum width of the Bose condensates to the temporal width of the tunneling steps and discuss the implications for measuring the jump time in the Landau-Zener problem.
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