Otro
Time-dependent non-Hermitian Hamiltonians with real energies
Registro en:
Europhysics Letters. Les Ulis Cedex A: Edp Sciences S A, v. 71, n. 2, p. 166-171, 2005.
0295-5075
10.1209/epl/i2005-10073-7
WOS:000231108600002
Autor
Dutra, Alvaro de Souza
Hott, M. B.
dos Santos, VGCS
Resumen
In this work we intend to study a class of time-dependent quantum systems with non-Hermitian Hamiltonians, particularly those whose Hermitian counterparts are important for the comprehension of posed problems in quantum optics and quantum chemistry. They consist of an oscillator with time-dependent mass and frequency under the action of a time-dependent imaginary potential. The wave functions are used to obtain the expectation value of the Hamiltonian. Although it is neither Hermitian nor PT symmetric, the Hamiltonian under study exhibits real values of energy.