Heisenberg treatment of multiphoton pulses in waveguide QED with time-delayed feedback
Abstract
The dynamics of waveguide-QED systems involving coherent time-delayed feedback give rise to a hierarchy of multi-time correlations within the Heisenberg picture due to the induced non-Markovianity. We propose to perform a projection onto a complete set of states in the Hilbert space to decompose the multi-time correlations into single-time matrix elements. To illustrate the procedure, we consider the paradigmatic example of a two-level system that couples to a semi-infinite waveguide and interacts with quantum light pulses. Our approach complements the range of available methods as it allows calculating the dynamics under the inclusion of additional dissipation channels in a numerically exact and efficient manner for multiphoton pulses of arbitrary shape where memory requirements are known in advance.
Keywords
Cite
@article{arxiv.2111.02816,
title = {Heisenberg treatment of multiphoton pulses in waveguide QED with time-delayed feedback},
author = {Kisa Barkemeyer and Andreas Knorr and Alexander Carmele},
journal= {arXiv preprint arXiv:2111.02816},
year = {2022}
}