$\mathcal{P}\mathcal{T}$-symmetric, non-Hermitian quantum many-body physics -- a methodological perspective

Volker Meden, Lukas Grunwald, Dante M. Kennes

We review the methodology to theoretically treat parity-time- ($\mathcal{P}\mathcal{T}$-) symmetric, non-Hermitian quantum many-body systems... (For the full abstract see paper)