It may sound counterintuitive, but sometimes noise can actually improve a measurement. In the quantum world, the chaotic nature of noise is not just a disturbance, but it carries valuable statistical information about a system’s behavior. Daniele Fausti and his team have developed a technique that harnesses the intrinsic randomness of light to track quantum fluctuations in materials. By using weak laser pulses with randomized phases, they studied how the statistical properties of photons interacting with vibrations in quartz evolve at ultrafast timescales. This approach provides a new way to explore quantum materials in non-equilibrium states, revealing statistical properties that traditional methods might overlook.
Publication:
Filippo Glerean, Enrico Maria Rigoni, Giacomo Jarc, Shahla Yasmin Mathengattil, Angela Montanaro, Francesca Giusti, Matteo Mitrano, Fabio Benatti, and Daniele Fausti
Ultrafast pump-probe phase-randomized tomography. Light Sci Appl 14, 115 (2025).
It may sound counterintuitive, but sometimes noise can actually improve a measurement. In the quantum world, the chaotic nature of noise is not just a disturbance, but it carries valuable statistical information about a system’s behavior. Daniele Fausti and his team have developed a technique that harnesses the intrinsic randomness of light to track quantum fluctuations in materials. By using weak laser pulses with randomized phases, they studied how the statistical properties of photons interacting with vibrations in quartz evolve at ultrafast timescales. This approach provides a new way to explore quantum materials in non-equilibrium states, revealing statistical properties that traditional methods might overlook.
Publication:
Filippo Glerean, Enrico Maria Rigoni, Giacomo Jarc, Shahla Yasmin Mathengattil, Angela Montanaro, Francesca Giusti, Matteo Mitrano, Fabio Benatti, and Daniele Fausti
Ultrafast pump-probe phase-randomized tomography. Light Sci Appl 14, 115 (2025).