Speaker: Miguel Bello
Affiliation: MPQ-Munich
Date: Tuesday, 31 May 2022 at 12:00
Location: Online seminar
In this talk I will give an overview of the peculiar effects that occur when quantum emitters interact with one-dimensional non-Hermitian environments. First, we will discuss the presence of “hidden” bound states, which are the non-Hermitian analogue of the vacancy-like bound states present in Hermitian systems. This will be exemplified with the Hatano-Nelson model. Then, we will see how in critical baths, in the sense that their spectrum has a vanishing damping gap, it is possible to observe algebraic emitter decay, which typically is hindered in Hermitian systems by the presence of stable bound states. I will try to relate this strongly non-Markovian behavior with the dynamics within the bath.Refs:
[1] https://arxiv.org/abs/2205.05479
[2] https://arxiv.org/abs/2205.05490