arXiv:math-ph/0604003: On critical stability of three quantum charges interacting through delta potentials, H.D. Cornean, P. Duclos, B. Ricaud.

We consider three one dimensional quantum, charged and spinless particles interacting through delta potentials. We derive sufficient conditions which guarantee the existence of at least one bound state.

Few-Body Systems 38, 125 (2006): On critical stability of three quantum charges interacting through delta potentials, H.D. Cornean, P. Duclos, B. Ricaud.

We consider three one dimensional quantum, charged and spinless particles interacting through delta potentials. We derive sufficient conditions which guarantee the existence of at least one bound state.