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atto- +‎ clock


attoclock (plural attoclocks)

  1. (physics) A device that can measure time intervals of the order of attoseconds
    • 2015, Durmus A. Demir, Tugrul Guner, “An Entropic Formulation of Tunneling Time”, in arXiv[1]:
      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)].