PT-Symmetric Schrodinger Operators with Unbounded Potentials

Following the pioneering work of Carl M. Bender et al. (1998), there has been an increasing interest in theoretical physics in so-called PT-symmetric Schrodinger operators. In the physical literature, the existence of Schrodinger operators with PT-symmetric complex potentials having real spectrum was considered a surprise and many examples of such potentials were studied in the sequel. From a math...