Fieldoscopy at the quantum limit

Dmitry A. Zimin; Arjun Ashoka; Florentin Reiter; Akshay Rao

doi:10.1038/s41377-025-02066-8

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Fieldoscopy at the quantum limit

Original Articles

- Fieldoscopy at the quantum limit
- Light: Science & Applications Vol. 15, Issue 4, Pages: 1251-1260(2026)
- Affiliations：
  
  1.Cavendish Laboratory, Department of Physics, Cambridge University, CB3 0HF Cambridge, United Kingdom
  2.Laboratory of Physical Chemistry, ETH Zürich, 8093 Zürich, Switzerland
  3.Institute for Quantum Electronics, ETH Zürich, 8093 Zürich, Switzerland
  4.Quantum Center, ETH Zürich, 8093 Zürich, Switzerland
- Author bio：
  
  Dmitry A. Zimin (dzimin@ethz.ch)
- Funds：
- DOI：10.1038/s41377-025-02066-8
  CLC：
- Received：02 June 2025，
  
  Revised：2025-09-04，
  
  Accepted：17 September 2025，
  
  Online First：09 February 2026，
  
  Published：30 April 2026
- Accepted：
Scan QR Code
Zimin, D. A. et al. Fieldoscopy at the quantum limit. Light: Science & Applications, 15, 1251-1260 (2026).
DOI：

Zimin, D. A. et al. Fieldoscopy at the quantum limit. Light: Science & Applications, 15, 1251-1260 (2026). DOI： 10.1038/s41377-025-02066-8.

摘要

Abstract

We demonstrate a novel concept for measuring time-varying electric field transients of petahertz-scale photons down to a single-photon regime. We observe a clear breakdown of the classical regime consistent with our Monte Carlo model. We reach unprecedented yoctojoule-level (10⁻²⁴ J) sensitivity and a dynamic range exceeding 90 decibels. We utilize this capability to measure intrapulse light coherence - a regime inaccessible to conventional

time-averaged spectroscopy. This opens new avenues for quantum information

cryptography

and quantum light-matter interactions on sub-cycle time scales with attosecond precision.

关键词

Keywords

references

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