Krueckl, Viktor and Kramer, Tobias (2009) Revivals of quantum wave packets in graphene. New Journal of Physics 11 (9).
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We investigate the propagation of wave packets on graphene in a perpendicular magnetic field and the appearance of collapses and revivals in the time evolution of an initially localized wave packet. The wave-packet evolution in graphene differs drastically from the one in an electron gas and shows a rich revival structure similar to the dynamics of highly excited Rydberg states. We present a novel numerical wave-packet propagation scheme in order to solve the effective single-particle Dirac–Hamiltonian of graphene and show how the collapse and revival dynamics is affected by the presence of disorder. Our effective numerical method is of general interest for the solution of the Dirac equation in the presence of potentials and magnetic fields.
|Institutions:|| Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Tobias Kramer|
Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||30 Nov 2010 10:59|
|Last Modified:||17 Feb 2011 22:11|
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