2013/06/04 by Boyan T. Torosov, Giuseppe Della Valle, Stefano Longhi · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physreva.87.052502
published as Phys. Rev. A 87, 052502 (2013) · 5 pages, 3 figures
arxiv created 2013/06/04 · arxiv updated 2013/06/05
A non-Hermitian shortcut to adiabaticity is introduced. By adding an imaginary term in the diagonal elements of the Hamiltonian of a two state quantum system, we show how one can cancel the nonadiabatic losses and perform an arbitrarily fast population transfer, without the need to increase the coupling. We apply this technique to two popular level-crossing models: the Landau-Zener model and the Allen-Eberly model.