Viktor Krueckl and Tobias Kramer 2009 New J. Phys. 11 093010 doi:10.1088/1367-2630/11/9/093010
Revivals of quantum wave packets in graphene
Viktor Krueckl1,3 and Tobias Kramer1,2,3
Show affiliationsWe 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.
- PACS
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61.48.-c Structure of fullerenes and related hollow molecular clusters
- Subjects
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Surfaces, interfaces and thin films
- Dates
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Issue 9 (September 2009)
Received 3 July 2009
Published 14 September 2009
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Revivals of quantum wave packets in graphene
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