Dissipation driven phase transition in the non-Hermitian Kondo model

Understand

Non-Hermitian Hamiltonians capture several aspects of open quantum systems, such as dissipation of energy and non-unitary evolution.

• An example is an optical lattice where the inelastic scattering between the two orbital mobile atoms in their ground state and the atom in a metastable excited state trapped at a particular site and acting as an impurity, results in the two body losses.
• It was shown in \cite{nakagawa2018non} that this effect is captured by the non-Hermitian Kondo model.
• which was shown to exhibit two phases depending on the strength of losses.