AWhat changed
Measured a 650 ± 150 attosecond soft-X-ray pulse and its synchronization with the driving light field, demonstrating access to sub-femtosecond electronic dynamics.
Scientific scope
The record is the exact 2001 Nature article and its reported measurement. Other attosecond-pulse generation schemes, later isolated-pulse records and subsequent attosecond spectroscopy remain separate.
Evidence
The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the exact 2001 Nature article and its reported measurement. Other attosecond-pulse generation schemes, later isolated-pulse records and subsequent attosecond spectroscopy remain separate.
Contributors
- The named authors listed in the linked research record · SCIENCE: Complete source byline retained in the research record; this collective display does not merge person identities or measure labor shares.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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