Photoelectrons resolve the phase-dependent variance of bright squeezed vacuum

@misc{ma2026photoelectrons,
  title = {{Photoelectrons resolve the phase-dependent variance of bright squeezed vacuum}},
  author = {Haoran Ma and Yihe Wang and Chuan Cheng and Ian Gabalski and Aaron M. Ghrist and Eleanor Weckwerth and Mohammed Th. Hassan and Philip H. Bucksbaum},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.31811},
  eprint = {2610.31811},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.31811},
}

TY  - UNPB
TI  - Photoelectrons resolve the phase-dependent variance of bright squeezed vacuum
AU  - Haoran Ma
AU  - Yihe Wang
AU  - Chuan Cheng
AU  - Ian Gabalski
AU  - Aaron M. Ghrist
AU  - Eleanor Weckwerth
AU  - Mohammed Th. Hassan
AU  - Philip H. Bucksbaum
PY  - 2026
DA  - 2026/10/22
PB  - arXiv
DO  - 10.48550/arxiv.2610.31811
UR  - https://arxiv.org/abs/2610.31811
AB  - The variance of bright squeezed vacuum (BSV) is not only strong but also phase dependent, yet recent strong-field experiments with BSV have recorded only its magnitude. A coherent field of the same color provides the phase reference that resolves this phase-dependent noise. Strong-field ionization of xenon by this light shows that the photoelectron yield follows the BSV quadrature along the coherent field, and that the nonlinearity of ionization amplifies the quadrature noise many times over in the electron yield. The noise is moreover distributed unevenly over the photoelectron momentum distribution, differing by an order of magnitude between ionization channels. Strong-field ionization thus offers a phase-sensitive, channel-resolved detector of quantum light, while the quadrature noise of quantum light offers a probe of the intensity dependence of individual ionization pathways.
ER  -