N ov 2 00 6 Dynamics of semiclassical Bloch wave - packets
نویسنده
چکیده
The semiclassical approximation for electron wave-packets in crystals leads to equations which can be derived from a Lagrangian or, under suitable regularity conditions, in a Hamiltonian framework. In the plane, these issues are studied using the method of the coadjoint orbit applied to the “enlarged” Galilei group.
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تاریخ انتشار 2006