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Study Reveals Quantum Entanglement Timing with Laser Pulses

3/27/2026

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Summary

Story summary

Researchers from TU Wien and China study how quantum entanglement develops at attosecond timescales when atoms are hit by intense laser pulses.
Prof. Joachim Burgdörfer of TU Wien explains that the departing electron's birth time is uncertain and linked to the energy state of the remaining electron.
The researchers aim to measure the timing to reveal this link.
The findings were published in Physical Review Letters.

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Story summary

Researchers from TU Wien and China study how quantum entanglement develops at attosecond timescales when atoms are hit by intense laser pulses.
Prof. Joachim Burgdörfer of TU Wien explains that the departing electron's birth time is uncertain and linked to the energy state of the remaining electron.
The researchers aim to measure the timing to reveal this link.
The findings were published in Physical Review Letters.