Story perspectives

Breakthrough Control in Quantum Pathways Enables Ultra-Fast Pulses

9/30/2025

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Summary

Story summary

Researchers achieved precise control of quantum pathways in high-order harmonic generation (HHG) using squeezed light, enabling selective suppression of short or long paths.
This approach improves phase matching, supporting isolation of attosecond pulses.
The study predicts pulses shorter than one atomic unit, surpassing the current 43-attosecond limit.
HHG remains a vital technique for attosecond pulse generation and nanoscale imaging in materials.

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Story summary

Researchers achieved precise control of quantum pathways in high-order harmonic generation (HHG) using squeezed light, enabling selective suppression of short or long paths.
This approach improves phase matching, supporting isolation of attosecond pulses.
The study predicts pulses shorter than one atomic unit, surpassing the current 43-attosecond limit.
HHG remains a vital technique for attosecond pulse generation and nanoscale imaging in materials.