Amina Benbernou, Naima Boussekkine, Nawal Mecherout, Thierry Ramond, Johannes Sjöstrand. Non-Real Eigenvalues for $\mathcal{PT}$-Symmetric Double Wells.
Letters in Mathematical Physics, Springer Verlag, 2016, 106 (12), pp.1817-1835.
⟨10.1007/s11005-016-0852-8⟩.
⟨hal-01446841⟩