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Imaging electron motion with attosecond time resolution

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Disturbance from a point perturbation – frame-by-frame<br />

0.1 Å -6<br />

Units Å -6<br />

clipped at 1 Å -6<br />

0.005 Å -6<br />

∆t N<br />

= 20.7 as<br />

∆x N<br />

= 0.635 Å<br />

• Events transpire in 350 as – light travels 100 nm in vacuum<br />

• Causality Analytic properties Rise of entropy Arrow of <strong>time</strong>

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