Affiliation: | Department of Physics, Colorado State University, Fort Collins, CO 80523, USA;School of Computer Science and Applied Mathematics, DST-NRF Centre of Excellence in Mathematical and Statistical Sciences, University of the Witwatersrand, Johannesburg, Private Bag 3, Wits 2050, South Africa;Faculty of Applied Mathematics, AGH University of Science and Technology, Al. Mickiewicza 30, Cracow 30-059, Poland |