Particle-Time Duality in the Kicked Ising Chain II: Applications to the Spectrum

Autor: Akila, M., Waltner, D., Gutkin, B., Guhr, T.
Rok vydání: 2016
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1088/1751-8113/49/37/375101
Popis: Previously, we demonstrated 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 $N$. Using this duality relation we obtain the oscillating part of the density of states for a large number of spins. Furthermore, the duality relation explains the anomalous short-time behavior of the spectral form factor previously observed in the literature.
Comment: 16 pages, 8 figures
Databáze: arXiv