Diekmann, O. (2026, March 6). Perfect quantum state transfer in a dispersion-engineered chiral waveguide [Conference Presentation]. DPG SAMOP 2026, Mainz, Germany. http://hdl.handle.net/20.500.12708/226856
Faithful transfer of quantum states between distant nodes is a cornerstone of quantum networks, yet even the simplest setups such as two qubits weakly coupled to a waveguide suffer from fundamental efficiency limits related to the temporal shape of the emitted photon. I will present an approach that circumvents this limitation by directly engineering the waveguide dispersion. In particular, I will show how a tailored dispersion profile can reshape the photons wavepacket into the optimal time-reversed form, enabling faithful transfer without external control fields. I will discuss how to design the dispersion relation at different node distances and achieve robustness to variations of these distances.