SubcycleQ

Project information

Subcycle quantum optics is an emergent research field concerned with ultrafast measurements of quantum light.

This python package includes two contributions to the research field:

An approach to develop optical elements in a subcycle mode basis including nonlinearities. This is necessary to calculate the reconstructable temporal mode functions, analyse correlations in the time domain prevalent in the quantum pulse and reconstruct the wave function of Fock states [1]. An implementation of the generalized Bloch_messiah decomposition enabling a phase-space input-output relation. (work in progress)

.. [1] Emanuel Hubenschmid, Guido Burkard, Time-domain field correlation measurements enable tomography of highly multimode quantum states of light (2025), arXiv:2506.10483, Online available at https://doi.org/10.48550/arXiv.2506.10483