Population transfer at exceptional points in the spectra of the hydrogen atom in parallel electric and magnetic fields

作者：Oberreiter Lukas^*; Burkhardt Jan; Main Joerg; Wunner Guenter

来源：Physical Review A, 2018, 98(1): 013417.

DOI：10.1103/PhysRevA.98.013417

We study the population transfer between resonance states for a time-dependent loop around the exceptional points in the spectra of the hydrogen atom in parallel electric and magnetic fields. The exceptional points are well suited for population transfer mechanisms, since a closed loop around these in parameter space commutes eigenstates. We address the question of how shape and duration of the dynamical parameter loop affect the transferred population, in order to optimize the latter. Since the full quantum dynamics of the expansion coefficients is time consuming, we furthermore present an approximation method, based on a 2 x 2 matrix.

• 出版日期2018-7-23