attoclocks

Noun

attoclock (plural attoclocks)

1. A device that can measure time intervals of the order of attoseconds
   • Tunneling time, formulated in various different forms due to the absence of a time operator in quantum theory, has been measured recently in experiments based on the attoclock in ultrafast laser ionization of Helium atoms [A.~Landsman {\it et al.}, Optica {\bf 1}, 343 (2014)].2015, Durmus A. Demir, Tugrul Guner, “An Entropic Formulation of Tunneling Time”, in arXiv