Single-photon addition to multimode quantum fields at telecom wavelengths using lithium niobate and its doped variants

@misc{naveen2026singlephoton,
  title = {{Single-photon addition to multimode quantum fields at telecom wavelengths using lithium niobate and its doped variants}},
  author = {Naveen V and Nicolas Treps and Raghavan G and Valentina Parigi and Srinivasan K},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.02473},
  eprint = {2610.02473},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.02473},
}

TY  - UNPB
TI  - Single-photon addition to multimode quantum fields at telecom wavelengths using lithium niobate and its doped variants
AU  - Naveen V
AU  - Nicolas Treps
AU  - Raghavan G
AU  - Valentina Parigi
AU  - Srinivasan K
PY  - 2026
DA  - 2026/10/08
PB  - arXiv
DO  - 10.48550/arxiv.2610.02473
UR  - https://arxiv.org/abs/2610.02473
AB  - Multimode spectro-temporal non-Gaussian quantum states of light play a crucial role in continuous-variable quantum information processing. In particular, the non-Gaussian quantum states generated through a single-photon addition (SPA) to multimode quantum fields at telecommunication wavelengths constitute a useful resource for quantum technologies. We present a detailed theoretical analysis and numerical simulations of single-photon addition (SPA) and mode-selective single-photon addition (MSSPA) to a multimode quantum field at telecommunication wavelengths. The analysis is performed for congruently grown lithium niobate (LN), 5% MgO-doped lithium niobate (MgO:LN) and various concentrations of ZnO-doped lithium niobate (ZnO:LN) bulk crystals. We investigate MSSPA using type-II parametric down-conversion (PDC) and SPA using the type-I PDC processes. We further present spectro-temporal mode-selective SPA at the telecom wavelength using 5% MgO:LN for temperatures ranging from 0^∘ C to 15^∘ C. In addition, we perform simulations to investigate SPA based on the noncollinear type-I PDC configuration. These theoretical results identify optimal experimental conditions and phase-matching parameters to achieve SPA and mode-selective SPA for LN-based crystals, providing a potential platform for non-Gaussian quantum state engineering at telecommunication wavelengths, mainly at $1550$ nm.
ER  -