Exciting a bound state in the continuum through multiphoton scattering plus delayed quantum feedback

G Calajó, YLL Fang, HU Baranger, F Ciccarello - Physical review letters, 2019 - APS
Excitation of a bound state in the continuum (BIC) through scattering is problematic since it is
by definition uncoupled. Here, we consider a type of dressed BIC and show that it can be …

Non-Markovian dynamics of a qubit due to single-photon scattering in a waveguide

YLL Fang, F Ciccarello, HU Baranger - New Journal of Physics, 2018 - iopscience.iop.org
We investigate the open dynamics of a qubit due to scattering of a single photon in an
infinite or semi-infinite waveguide. Through an exact solution of the time-dependent multi …

Comparison between continuous-and discrete-mode coherent feedback for the Jaynes-Cummings model

N Német, A Carmele, S Parkins, A Knorr - Physical Review A, 2019 - APS
Using the example of the Jaynes-Cummings model, we present a comparison between time-
delayed coherent feedback mediated by reservoirs with continuous-and discrete-mode …

Optimal two-photon excitation of bound states in non-Markovian waveguide QED

R Trivedi, D Malz, S Sun, S Fan, J Vučković - Physical Review A, 2021 - APS
Bound states arise in waveguide QED systems with a strong frequency-dependence of the
coupling between emitters and photonic modes. While exciting such bound-states with …

Quantum non-Markovian collision models from colored-noise baths

D Cilluffo, F Ciccarello - Advances in Open Systems and Fundamental …, 2019 - Springer
A quantum collision model (CM), also known as repeated interactions model, can be built
from the standard microscopic framework where a system S is coupled to a white-noise …

Multimode-cavity picture of non-Markovian waveguide QED

D Cilluffo, L Ferialdi, GM Palma, G Calajò… - arxiv preprint arxiv …, 2024 - arxiv.org
We introduce a picture to describe and intrepret waveguide-QED problems in the non-
Markovian regime of long photonic retardation times resulting in delayed coherent feedback …

Erratum: Waveguide QED: Power spectra and correlations of two photons scattered off multiple distant qubits and a mirror [Phys. Rev. A 91, 053845 (2015)]

YLL Fang, HU Baranger - Physical Review A, 2017 - APS
We present two corrections to the original article. First, Fig. 14 should be replaced by the
figure shown below. The result shown for k0a= 20π in Fig. 14 (b) of the original paper is …

Waveguide QED: Multiple Qubits, Inelastic Scattering, and Non-Markovianity

YLL Fang - 2017 - search.proquest.com
Waveguide quantum electrodynamics (QED) studies multi-level systems (or qubits) strongly
interacting with one-dimensional (1D) light fields confined in a waveguide. This rapidly …

Feedback-induced instabilities and dynamics in the Jaynes-Cummings model

N Német, S Parkins, V Canela, A Carmele - arxiv preprint arxiv …, 2020 - arxiv.org
We investigate the coherence and steady-state properties of the Jaynes-Cummings model
subjected to time-delayed coherent feedback in the regime of multiple excitations. The …

[HTML][HTML] Exciting Dressed BICs Via Photon Scattering and Delayed Quantum Feedback

G Calajó, YLL Fang, HU Baranger, F Ciccarello - Proceedings, 2019 - mdpi.com
We consider a semi-infinite waveguide with linear dispersion coupled to a qubit, in which a
dressed bound state in the continuum (BIC) is known to exist. We predict that this BIC can be …