Geometric phase decomposition in the basis of Hermite-Gaussian functions

Rimvydas Aleksiejunas, Vladislovas Ivaska
2012 Open Physics  
AbstractThe work presents geometric phase decomposition for analytical signals using Hermite-Gaussian functions. The decomposition is based on the time-frequency distribution with reassigned and multi-tapered spectrogram resulting in increased phase estimation resolution. Numerical analysis is applied to a number of SU(2) evolutions, such as spin-1/2 particle in a static and rotating magnetic field, as well as polarization rotation of a plane wave in optically active medium. Geometric phase
more » ... Geometric phase decomposition results are provided also for quantum harmonic oscillator and a radiation field of an electric dipole exited by a short pulse.
doi:10.2478/s11534-011-0081-9 fatcat:5742obw5xzeu5evvx74mogvjma