Zitterbewegung of a heavy hole in presence of spin-orbit interactions Tutul Biswas, Sandip Chowdhury and Tarun Kanti Ghosh Eur. Phys. J. B, 88 9 (2015) 220 Published online: 07 September 2015 DOI: 10.1140/epjb/e2015-60425-6