Tunneling time, the barrier time-delay and weak measurement What was or can actually be measured with the Attoclock?

• URL: http://arxiv.org/abs/2402.14431v2
• Date: Tue, 2 Apr 2024 15:45:11 GMT
• Title: Tunneling time, the barrier time-delay and weak measurement What was or can actually be measured with the Attoclock?
• Authors: Ossama Kullie,
• Abstract summary: We show that the barrier time-delay can be convincingly defined and determined from the difference between the time-delay of adiabatic and nonadiabatic tunnel-ionization. In the weak measurement limit, the barrier time-delay corresponds to the Larmor-clock time and the interaction time within the barrier.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The measurement of the tunneling time-delay in attosecond experiments, termed attoclock, despite its controversies, offers a fruitful opportunity to understand the tunneling time and the tunnel-ionization process. In previous work, we showed a model that well describes the time-delay measured by the attoclock experiment in the adiabatic and nonadiabatic field calibrations. In the present work we show that the tunneling time reveals a universal behavior, with disentangled contribution, where the barrier time-delay can be convincingly defined and determined from the difference between the time-delay of adiabatic and nonadiabatic tunnel-ionization, with good agreement with the experimental result. Furthermore, we show that in the weak measurement limit, the barrier time-delay corresponds to the Larmor-clock time and the interaction time within the barrier.

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