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Science 6 April 2007:
Vol. 316. no. 5821, p. 33
DOI: 10.1126/science.316.5821.33a
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News of the Week

PHYSICS:
Attosecond Laser Pulses Illuminate Fleeting Dance of Electrons

Yudhijit Bhattacharjee

When hit by a burst of intense light, an electron can escape the confines of an atom in just a few hundred attoseconds, thanks to a quantum-mechanical phenomenon known as tunneling. Now, for the first time, scientists have seen this blindingly fast escape act happen in real time. (Read more.)

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Science. ISSN 0036-8075 (print), 1095-9203 (online)