Exact analytical solutions for time-dependent Hermitian Hamiltonian   systems from static unobservable non-Hermitian Hamiltonians
  We propose a procedure to obtain exact analytical solutions to the time-dependent Schr\"{o}dinger equations involving explicit time-dependent Hermitian Hamitonians from solutions to time-independent non-Hermitian Hamiltonian systems and the time-dependent Dyson relation together with the time-dependent quasi-Hermiticity relation. We illustrate the working of this method for a simple Hermitian Rabi-type model by relating it to a non-Hermitian time-independent system corresponding to the one-site lattice Yang-Lee model. 
Andreas Fring and Thomas Frith
quant-ph physics.atom-ph