Mainz 2017 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

A: Fachverband Atomphysik

A 22: Attosecond Science

A 22.6: Vortrag

Mittwoch, 8. März 2017, 16:00–16:15, N 2

Tunneling time in attosecond experiments, how to understand the measurement of time and the tunneling process in attosecond experiments. — •Ossama Kullie — Institute of Physic, University of Kassel, Germany

The measurement of the tunneling time (T-time) in today's attosecond and strong field (low-frequency) experiments, despite its controversial discussion, offers a fruitful opportunity to understand time measurement, and the importance issue of the theory of time, the time operator and the time-energy uncertainty relation in quantum mechanics. In [1] I derived an estimation and a relation of the (real) tunneling time, which shows an excellent agreement with the time measured in attosecond experiments of the He atom case [2]. This tunneling model, and the experiment [2], offers a realization of the Bohr-Einstein photon box Gedanken experiment. This has an important consequence to the time operator [3]. Some models used to calculate the T-time will be also discussed in relation to my model, where I showed that the important question is a more general one: How to understand the time and the measurement of the time of a quantum system [4]. The tunneling process itself is still not well understood, but I am arguing that a scattering mechanism offers a possibility to understand the tunneling process in the tunneling region [5].

[1] O Kullie 2015, Phys. Rev. A 92 052118. [2] P Eckle et al 2008, Nat.phys. 4 565. [3] M. Bauer, arxiv1608.03492v1 (2016). [4] O Kullie 2016, J. Phys. B 49, 095601. [5] O Kullie (2016), J. Phys. B, submitted.