2016/02/23 by M. Akila, D. Waltner, B. Gutkin +1 · 1 voice · 4 citations
Physics and Astronomy · #nlin.CD #quant-ph
paper · pdf · doi:10.1088/1751-8113/49/37/375101
We demonstrate that the dynamics of kicked spin chains possess a remarkable duality property. The trace of the unitary evolution operator for N spins at time T is related to one of a non-unitary evolution operator for T spins at time N. We investigate the spectrum of this dual operator with a focus on the different parameter regimes (chaotic, regular) of the spin chain. We present applications of this duality relation to spectral statistics in an accompanying paper.